ci(deps): bump actions/github-script from 8 to 9

Bumps [actions/github-script](https://github.com/actions/github-script) from 8 to 9.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@v8...v9)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-version: '9'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/benchmark-manual.yml

@@ -136,7 +136,7 @@ jobs:
 
       - name: Post results to PR
         if: github.event_name == 'workflow_dispatch' && github.event.inputs.post_comment == 'true' && github.event.inputs.pr_number
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const fs = require('fs');

.github/workflows/benchmark-on-merge.yml

@@ -96,7 +96,7 @@ jobs:
           echo "EOF" >> $GITHUB_OUTPUT
 
       - name: Post benchmark results to PR
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const fs = require('fs');

.github/workflows/benchmark-pr.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Fetch PR details for comment trigger
         if: github.event_name == 'issue_comment'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         id: pr_details
         with:
           script: |