chore(deps): update actions/create-github-app-token action to v2.2.1

Author: renovate[bot]

.github/workflows/backport.yaml

@@ -28,7 +28,7 @@ jobs:
       # This actions creates the github token using the postgrest app secrets
       - name: Create Github App Token
         id: app-token
-        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94 # v2.2.0
+        uses: actions/create-github-app-token@29824e69f54612133e76f7eaac726eef6c875baf # v2.2.1
         with:
           app-id: ${{ vars.POSTGREST_CI_APP_ID }}
           private-key: ${{ secrets.POSTGREST_CI_PRIVATE_KEY }}