test: github token with updated permissions

Author: CodeSchwert

.github/workflows/update-version.yml

@@ -13,7 +13,7 @@ jobs:
   update:
     runs-on: ubuntu-latest
     env:
-      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GH_TOKEN: ${{ secrets.UNITY_IMMUTABLE_SDK_GITHUB_TOKEN }}
     steps:
     - name: Checkout code
       uses: actions/checkout@v3