chore: limit Dependabot to one grouped weekly github-actions PR

[achris7]

Adds a standardized Dependabot config: a single grouped weekly github-actions PR (Thursday 09:00 UTC, valid version: 2) to keep workflow action versions current with low PR noise.

Summary by CodeRabbit

• Chores
  • Configured automatic dependency updates to run weekly on Thursdays

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: 0621aca6-25b5-4607-83dd-73e0b2216f17

📥 Commits

Reviewing files that changed from the base of the PR and between 0c86591 and e3f5ef2.

📒 Files selected for processing (1)

• .github/dependabot.yml

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📝 Walkthrough

Walkthrough

A new .github/dependabot.yml file is added with a Dependabot v2 configuration that schedules weekly GitHub Actions dependency updates every Thursday at 09:00 UTC, grouping all matching PRs under the weekly-updates label using a * wildcard pattern.

Changes

Dependabot Configuration

Layer / File(s)	Summary
Dependabot weekly GitHub Actions update rule .github/dependabot.yml	Introduces the full Dependabot v2 config for the github-actions ecosystem: weekly schedule on Thursdays at 09:00 UTC, scoped to the repository root, with all packages grouped under weekly-updates.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐇 Hop, hop, a config appears,
Keeping actions fresh through the years.
Every Thursday, the bunny checks,
For updates hiding in the specs.
No stale workflows shall remain —
The rabbit's on the job again! 🌿

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/limit-dependabot

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_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[Copilot]

Pull request overview

Adds a Dependabot configuration intended to reduce PR noise by batching GitHub Actions version bumps into a single weekly grouped update PR.

Changes:

• Introduces .github/dependabot.yml with Dependabot config version 2.
• Schedules GitHub Actions dependency updates weekly on Thursday at 09:00 UTC.
• Groups all GitHub Actions updates into a single group (weekly-updates) via patterns: ["*"].

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