revert: "chore: add cleaning workflow ci"

This reverts commit 8dcf500d79.

.forgejo/workflows/clean-containers.yml

@@ -1,25 +0,0 @@
-name: Clean container registry
-on:
-  push:
-  workflow_dispatch:
-jobs:
-  clean:
-    runs-on: docker
-    strategy:
-      matrix:
-        box:
-          - "devbox"
-    steps:
-      - name: Get timestamp
-        id: timestamp
-        run: |
-          echo "year=$(date +'%Y-%m')" >> $GITHUB_OUTPUT
-          echo "current_month=$(date +'%Y-%m')" >> $GITHUB_OUTPUT
-      - uses: actions/delete-package-versions@v5
-        with:
-          package-name: ${{matrix.box}}
-          package-type: 'container'
-          min-version-to-keep: 3
-          # ignore latest and this month uploads
-          ignore-versions: '^(?:latest)$'
-          token: ${{ secrets.CONTAINER_REGISTRY_TOKEN }}