chore(deps): combine and fix up dependabot bumps (black 26, mypy 2, pytest 9.1)

[leongdl]

Combining and fixing up the three failing dependabot PRs (#267, #269, #270) so they can be closed.

Changes (requirements-testing.txt)

• black 25.* -> 26.* (chore(deps): update black requirement from ==25.* to ==26.* #267)
• mypy 1.19.* -> 2.1.* (chore(deps): update mypy requirement from ==1.19.* to ==2.1.* #269)
• pytest 9.0.* -> 9.1.* (chore(deps): update pytest requirement from ==9.0.* to ==9.1.* #270)

Why the individual PRs were failing

1. black 26 / mypy 2 drop Python 3.9. Both now require >=3.10, but this package supports >=3.9 and tests it in CI. Fixed with environment markers (matching the pytest marker pattern already in the file) so the 3.9 job keeps the last compatible release and 3.10+ gets the new major:

pytest == 9.1.*; python_version >= '3.10'
pytest == 8.4.*; python_version < '3.10'
black == 26.*; python_version >= '3.10'
black == 25.*; python_version < '3.10'
mypy == 2.1.*; python_version >= '3.10'
mypy == 1.19.*; python_version < '3.10'

Also applied black 26's docstring blank-line reformatting; verified black 25 agrees with the reformatted tree so the 3.9 black --check job stays green.

2. pytest 9.1 broke 7 tests in test_entrypoint.py. pytest 9.1 reworked log capture for non-propagating loggers (changelog #3697). The autouse mock_getLogger fixture patched the global logging.getLogger, which pytest 9.1's caplog now relies on to install its capture handler — so caplog.text came back empty. Fixed by patching EntryPoint._init_loggers instead (the actual thing the fixture was trying to stub out), which works on both pytest 8.4 (the 3.9 job) and 9.1 (3.10+).

Verification

• ruff check / black --check — pass
• mypy (2.1.0) — no issues in 146 source files
• hatch run test — 475 passed, 26 skipped
• Verified the 7 previously-failing tests pass under both pytest 8.4 and 9.1 (with xdist, matching CI)

Closes #267, closes #269, closes #270.

[seant-aws]

😎