Update conda-incubator/setup-miniconda action to v4

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This PR contains the following updates:

Package	Type	Update	Change
conda-incubator/setup-miniconda	action	major	v3 → v4

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Release Notes

conda-incubator/setup-miniconda (conda-incubator/setup-miniconda)

v4.0.1

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Fixes

• Fix MultipleKeysError on conda 25.11+ when a user-supplied condarc-file
  already declares auto_activate: now only one of auto_activate /
  auto_activate_base is written to .condarc, preferring whichever key the
  user's existing condarc uses.
• Add auto_activate to the boolean coercion set so its value is serialized as
  a YAML boolean when it is the chosen canonical key.
• Add local_repodata_ttl to KNOWN_CONDARC_KEYS to silence a spurious
  "Unrecognized condarc key" warning for a valid conda key.

v4

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Fixes

• Fix MultipleKeysError on conda 25.11+ when a user-supplied condarc-file
  already declares auto_activate: now only one of auto_activate /
  auto_activate_base is written to .condarc, preferring whichever key the
  user's existing condarc uses.
• Add auto_activate to the boolean coercion set so its value is serialized as
  a YAML boolean when it is the chosen canonical key.
• Add local_repodata_ttl to KNOWN_CONDARC_KEYS to silence a spurious
  "Unrecognized condarc key" warning for a valid conda key.

v4.0.0

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Breaking Changes

• #​459: Upgrade action runtime to Node.js 24.x (requires runners with
  Node 24 support; this is the reason for the v4 major bump)
• #​450: Switch action build to ESM (for @actions/exec v3)

Features and Enhancements

• #​469: Add conda-init input to optionally skip conda init and
  document activation for restricted environments
• #​482: Add channels parsing utility and URL validation
• #​481: Enable stricter TypeScript checks and typing
• #​480: Add more tests, increase coverage, add Codecov integration and
  coverage badge
• #​479: Add TypeDoc-based API docs, generation and checks; configure
  GitHub Pages and Netlify previews

Fixes

• #​465: Fix double channel configuration being applied
• #​467: Speed up Windows post-run cleanup by moving the extracted
  packages directory instead of removing files one by one
• #​470: Fix name-version-build syntax expansion and add tests
• #​475: Split shell init and activation of the test environment to remove
  spurious warning

Performance

• #​486: Remove HTML index scraping for Miniconda version validation
• #​487: Parallelize Windows takeown calls with Promise.all
• #​488: Replace isDefaultEnvironment subprocess with local YAML reads
• #​489: Replace conda config subprocesses with direct .condarc YAML
  writes

Tasks and Maintenance

• #​444: Bump conda-incubator/setup-miniconda from 3.2.0 to 3.3.0
• #​445: Bump actions/checkout from 6.0.1 to 6.0.2
• #​449: Bump @​actions/exec from 2.0.0 to 3.0.0
• #​456, #​484, #​491: Bump actions/upload-artifact
• #​460: Bump actions/download-artifact from 7.0.0 to 8.0.1
• #​464: Update dependencies for actions and packages
• #​466: Bump @​actions/tool-cache from 2.0.2 to 4.0.0
• #​473: Bump flatted from 3.2.9 to 3.4.2
• #​476: Bump picomatch
• #​477: Bump conda-incubator/installer from 0.1.0 to 0.1.1
• #​485: Bump vite from 8.0.0 to 8.0.8
• #​492: Bump actions/upload-pages-artifact from 3 to 5
• #​493: Bump marocchino/sticky-pull-request-comment from 2 to 3
• #​494: Bump actions/deploy-pages from 4 to 5
• #​495: Bump codecov/codecov-action from 5 to 6
• #​496: Bump @​actions/core from 3.0.0 to 3.0.1

v3.3.0

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Fixes

• #​410: Ignore auto_activate warning
• #​411: Deprecate auto-activate-base input
• #​414: Activate default environment instead of base environment
• #​435: fix: remove accidental indentation from shell config template
  strings
• #​442: Translate POSIX set to xonsh's equivalent

Tasks and Maintenance

• #​405, #​413, #​439: Bump normalize-url from 8.0.1 to 8.1.1
• #​425: Bump @​actions/io from 1.1.3 to 2.0.0
• #​432: Bump @​actions/exec from 1.1.1 to 2.0.0
• #​433, #​441: Bump @​actions/core from 1.11.1 to 2.0.2
• #​416: Bump semver and @​types/semver
• #​421: Bump actions/setup-node from 5 to 6
• #​427: Bump js-yaml from 4.1.0 to 4.1.1

v3.2.0

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Fixes

• #​398 Check all .condarc files when removing defaults
• #​397 Add version normalization for minicondaVersion in input validation
• #​402 Workaround for auto_activate_base deprecation

Tasks and Maintenance

• #​391 Bump conda-incubator/setup-miniconda from 3.1.0 to 3.1.1
• #​390 Bump undici from 5.28.4 to 5.28.5
• #​399 Bump semver and @​types/semver

v3.1.1

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Fixes

• #​378: Make nodefaults warning more explicit
• #​387: Detect and support Linux ARM runners for both Miniconda and Miniforge

Tasks and Maintenance

• #​374: Bump conda-incubator/setup-miniconda from 3.0.4 to 3.1.0
• #​375: Bump actions/cache from 3 to 4
• #​384: Bump @​actions/tool-cache from 2.0.1 to 2.0.2
• #​386: Fix link to example 14
• #​388: Fix mamba 1.x examples

v3.1.0

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Features

• #​367: Add conda-remove-defaults setting to remove the defaults channel
  if added implicitly
• #​342: Add installation-dir to customize where the installers are installed
  to
• #​328: Make conda's cache configurable via pkgs-dirs

Fixes

• #​360: Start deprecation of miniforge-variant: Mambaforge
• #​362: Ignore conda cygpath warning
• #​368: Address mamba v2 incompatibilities
• #​350: set CONDA environment variable regardless of useBundled option

Tasks and Maintenance

• #​348: Bump conda-incubator/setup-miniconda from 3.0.3 to 3.0.4
• #​353: Bump semver and @​types/semver
• #​356: Bump braces from 3.0.2 to 3.0.3
• #​359: Bump semver from 7.6.2 to 7.6.3
• #​370: Bump @​actions/core from 1.10.1 to 1.11.1

v3.0.4

Compare Source

Fixes

• #​345 Fix running on macOS 13 on Intel since the runners no longer provide
  miniconda by default.

Tasks and Maintenance

• #​337 Bump conda-incubator/setup-miniconda from 3.0.2 to 3.0.3 (#​337)
• #​338 Bump normalize-url from 8.0.0 to 8.0.1
• #​340 Bump undici from 5.27.4 to 5.28.5

v3.0.3

Compare Source

Fixes

• #​336 Fall back to miniconda3 latest when no bundled version + empty with
  params

Tasks and Maintenance

• #​335 Bump conda-incubator/setup-miniconda from 3.0.1 to 3.0.2

v3.0.2

Compare Source

Fixes

• #​312 Enable ARM64 on macOS for Miniforge and Mambaforge including automatic
  architecture detection.

Tasks and Maintenance

• #​327 Bump conda-incubator/setup-miniconda from 3.0.0 to 3.0.1
• #​330 Bump actions/cache from 3 to 4
• #​334 Bump undici from 5.27.2 to 5.28.3

v3.0.1

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Fixes

• #​325 Fix environment activation on windows (a v3 regression) due to
  hard-coded install PATH

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