github/workflows: Bump actions/github-script from 6 to 7.

Bumps [actions/github-script](https://github.com/actions/github-script)
from 6 to 7.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](https://github.com/actions/github-script/compare/v6...v7)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-type: direct:production
  update-type: version-update:semver-major
...
Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/code_size_comment.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - name: 'Download artifact'
         id: download-artifact
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           result-encoding: string
           script: |
@@ -56,7 +56,7 @@ jobs:
         run: unzip code-size-report.zip
       - name: Post comment to pull request
         if: steps.download-artifact.outputs.result == 'ok'
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
           script: |