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](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] <[email protected]>

.github/workflows/plan.yml

@@ -50,7 +50,7 @@ jobs:
         run: terraform plan -input=false -no-color
 
       - name: Add Pull Request Comment
-        uses: actions/github-script@v6
+        uses: actions/github-script@v7
         env:
           PLAN: "terraform\n${{ steps.plan.outputs.stdout }}"
         with: