chore(deps): update actions/github-script action to v8

Author: renovate[bot]

.github/workflows/assign-copilot-reviewer.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Assign Copilot as reviewer
-        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{ secrets.COPILOT_ASSIGNING_PAT }}
           script: |