build(deps): bump actions/github-script from 7 to 8

Bumps [actions/github-script](https://github.com/actions/github-script) from 7 to 8.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@v7...v8)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/pr-labeler.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Add changelog label
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const title = context.payload.pull_request.title.toLowerCase();

.github/workflows/update-tox.yml

@@ -54,7 +54,7 @@ jobs:
           echo "date=$DATE" >> $GITHUB_OUTPUT
 
       - name: Create pull request
-        uses: actions/github-script@v8.0.0
+        uses: actions/github-script@v8
         with:
           script: |
             const branchName = '${{ steps.create-branch.outputs.branch_name }}';