GitHub Action: Update mu-pr-validation workflow to use actions/github-script 9

[dependabot]

Bumps the all-actions-dependencies group with 1 update in the / directory: actions/github-script.

Updates actions/github-script from 8 to 9

Release notes

Sourced from actions/github-script's releases.

v9.0.0

New features:

• getOctokit factory function — Available directly in the script context. Create additional authenticated Octokit clients with different tokens for multi-token workflows, GitHub App tokens, and cross-org access. See Creating additional clients with getOctokit for details and examples.
• Orchestration ID in user-agent — The ACTIONS_ORCHESTRATION_ID environment variable is automatically appended to the user-agent string for request tracing.

Breaking changes:

• require('@actions/github') no longer works in scripts. The upgrade to @actions/github v9 (ESM-only) means require('@actions/github') will fail at runtime. If you previously used patterns like const { getOctokit } = require('@actions/github') to create secondary clients, use the new injected getOctokit function instead — it's available directly in the script context with no imports needed.
• getOctokit is now an injected function parameter. Scripts that declare const getOctokit = ... or let getOctokit = ... will get a SyntaxError because JavaScript does not allow const/let redeclaration of function parameters. Use the injected getOctokit directly, or use var getOctokit = ... if you need to redeclare it.
• If your script accesses other @actions/github internals beyond the standard github/octokit client, you may need to update those references for v9 compatibility.

What's Changed

• Add ACTIONS_ORCHESTRATION_ID to user-agent string by @​Copilot in actions/github-script#695
• ci: use deployment: false for integration test environments by @​salmanmkc in actions/github-script#712
• feat!: add getOctokit to script context, upgrade @​actions/github v9, @​octokit/core v7, and related packages by @​salmanmkc in actions/github-script#700

New Contributors

• @​Copilot made their first contribution in actions/github-script#695

Full Changelog: actions/github-script@v8.0.0...v9.0.0

Commits

• 3a2844b Merge pull request #700 from actions/salmanmkc/expose-getoctokit + prepare re...
• ca10bbd fix: use @​octokit/core/types import for v7 compatibility
• 86e48e2 merge: incorporate main branch changes
• c108472 chore: rebuild dist for v9 upgrade and getOctokit factory
• afff112 Merge pull request #712 from actions/salmanmkc/deployment-false + fix user-ag...
• ff8117e ci: fix user-agent test to handle orchestration ID
• 81c6b78 ci: use deployment: false to suppress deployment noise from integration tests
• 3953caf docs: update README examples from @​v8 to @​v9, add getOctokit docs and v9 brea...
• c17d55b ci: add getOctokit integration test job
• a047196 test: add getOctokit integration tests via callAsyncFunction
• Additional commits viewable in compare view

[mu-automation]

✅ QEMU Validation Passed

Source Dependencies

Repository	Commit
mu_plus	505f056
mu_tiano_platforms	4884f14

Results

Platform	Target	Build	Boot	Overall Boot Time	Build Logs	Boot Logs
Q35	DEBUG	✅ success	✅ success	0m 17s	Build Logs	Boot Logs
SBSA	DEBUG	✅ success	✅ success	0m 29s	Build Logs	Boot Logs

Workflow run: https://github.com/microsoft/mu_plus/actions/runs/24432629352

This comment was automatically generated by the Mu QEMU PR Validation workflow.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (release/202511@1716714). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                @@
##             release/202511     #873   +/-   ##
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  Coverage                  ?   10.10%           
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  Files                     ?      149           
  Lines                     ?    24833           
  Branches                  ?     2346           
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  Hits                      ?     2509           
  Misses                    ?    22288           
  Partials                  ?       36           

Flag	Coverage Δ
AdvLoggerPkg	2.86% <ø> (?)
HidPkg	2.79% <ø> (?)
MfciPkg	34.00% <ø> (?)
MsCorePkg	1.30% <ø> (?)
MsWheaPkg	7.37% <ø> (?)
XmlSupportPkg	25.46% <ø> (?)

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[apop5]

@dependabot recreate