Bump actions/github-script from 6 to 7 (#359)

Bumps [actions/github-script](https://github.com/actions/github-script) from 6 to 7.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/postbench.yml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - run: echo 'The triggering workflow passed'
       - name: 'Download artifact'
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           script: |
             let allArtifacts = await github.rest.actions.listWorkflowRunArtifacts({
@@ -38,7 +38,7 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       - name: 'Comment on PR test 2'
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |