build: add group for codeql-action sub-actions in dependabot config

[NelsonBN]

Checklist before requesting a review

• I have performed a self-review of my code.
• Implemented tests for new features.
• I tested the features already implemented.
• Added usage examples in the readme.

[github-actions]

🚀 Stryker report generated 🚀

To more details: https://dashboard.stryker-mutator.io/reports/github.com/TechNobre/PowerUtils.Geolocation/improve-dependabot-352

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
PowerUtils.Geolocation	100%	99%	131	✔
Summary	100% (181 / 181)	99% (69 / 70)	131	✔

[github-actions]

Test Summary

    5 files      5 suites   1s ⏱️
  252 tests   252 ✅ 0 💤 0 ❌
1 260 runs  1 260 ✅ 0 💤 0 ❌

Results for commit 63dfd9b.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull request overview

This PR updates the repository’s Dependabot configuration to group CodeQL Action “sub-actions” together so Dependabot proposes a single, consistent version bump across init, autobuild, and analyze.

Changes:

• Add a groups entry to the github-actions Dependabot updates config.
• Define a codeql-action group with a pattern intended to match github/codeql-action/* dependencies.

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