chore: remove GAR actions from CI

.github/workflows/gar-cleanup.yml

@@ -1,45 +0,0 @@
-name: GAR Cleanup
-
-on:
-    schedule:
-        - cron: '30 6 * * *'
-    workflow_dispatch: {}
-    workflow_run:
-        workflows: ['Deploy']
-        types:
-            - completed
-
-jobs:
-    docker_cleanup:
-        name: Cleanup Deployed Images
-        runs-on: ubuntu-latest
-        strategy:
-            matrix:
-                region: [us, europe, asia]
-            fail-fast: false
-        steps:
-            - name: Set up Cloud SDK
-              uses: google-github-actions/setup-gcloud@master
-              with:
-                  project_id: ${{ secrets.GCS_PROJECT_ID }}
-                  service_account_key: ${{ secrets.GCS_TF_KEY }}
-                  export_default_credentials: true
-
-            - name: Delete stale artifacts
-              run: |
-                  flags="--format=json --location=${{matrix.region}} --repository=roleypoly"
-
-                  packagesToPrune=$(gcloud artifacts packages list $flags | jq -r '.[].name')
-
-                  for package in $packagesToPrune; do
-                    tagsToKeep=$(gcloud artifacts tags list --package=$package $flags | jq -r '.[].version')
-                    versionsToCheck=$(gcloud artifacts versions list --package=$package $flags | jq -r '.[].name')
-
-                    for version in $versionsToCheck; do
-                      if [[ "$tagsToKeep" =~ .*"$version".* ]]; then
-                        continue
-                      fi
-
-                      gcloud artifacts versions delete $version --package=$package $flags --quiet
-                    done
-                  done