Update actions/create-github-app-token action to v2.2.1 (#685)

Author: gardener-ci-robot

.github/workflows/publish-to-package-repositories.yaml

@@ -49,7 +49,7 @@ jobs:
       - name: Get token for gardener-github-pkg-mngr app
         if: ${{ inputs.dry_run == false }}
         id: gardener-github-workflows
-        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94   # v2.2.0
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf   # v2.2.1
         with:
           app-id:      ${{ secrets.GARDENER_GITHUB_WORKFLOW_PKG_MNGR_APP_ID }}
           private-key: ${{ secrets.GARDENER_GITHUB_WORKFLOW_PKG_MNGR_APP_PRIVATE_KEY }}