ci: use github.token for image retention (#128)

* ?

* ci: use default github.token again

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Co-authored-by: Andrey Kaipov <andreykaipov@users.noreply.github.com>

Author: andreykaipov

.github/workflows/image-retention-policy.yml

@@ -8,17 +8,12 @@ jobs:
   clean-ghcr:
     runs-on: ubuntu-latest
     steps:
-    - uses: tibdex/github-app-token@v2
-      id: generate-token
-      with:
-        app_id: ${{ secrets.CATHY_CLOUD_APP_ID }}
-        private_key: ${{ secrets.CATHY_CLOUD_APP_PRIVATE_KEY }}
-
     - name: Delete old images
-      uses: snok/container-retention-policy@main
+      uses: snok/container-retention-policy@v2
       with:
         account-type: personal
-        token: ${{ steps.generate-token.outputs.token }}
+        token-type: github-token
+        token: ${{ github.token }}
         image-names: ${{ github.event.repository.name }}
         cut-off: one month ago EST
         untagged-only: true