chore(deps): update actions/github-script action to v9

Author: renovate[bot]

.github/workflows/code-cov.yml

@@ -50,7 +50,7 @@ jobs:
           poetry run pytest --cov=splunk_add_on_ucc_framework --cov-report=json:/tmp/coverage/pr-coverage.json tests/unit
 
       - name: Process coverage data and comment on PR
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const { default: compareDiff } = await import('${{ github.workspace }}/.github/scripts/code-coverage.mjs')