chore: remove dependency update and docker cleanup workflows

.github/workflows/docker-clean.yml

@@ -1,51 +0,0 @@
-name: Clean dangling Docker images
-
-on:
-  workflow_dispatch:
-
-jobs:
-  docker-clean:
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-
-    steps:
-      - name: Delete untagged GHCR versions
-        shell: bash
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          set -euo pipefail
-          OWNER="${GITHUB_REPOSITORY_OWNER}"
-          PACKAGE="$(echo "${GITHUB_REPOSITORY##*/}" | tr '[:upper:]' '[:lower:]')"
-
-          OWNER_TYPE="$(gh api "/users/${OWNER}" -q '.type')"
-          if [[ "${OWNER_TYPE}" == "Organization" ]]; then
-            SCOPE="orgs/${OWNER}"
-          else
-            SCOPE="users/${OWNER}"
-          fi
-
-          BASE_PATH="/${SCOPE}/packages/container/${PACKAGE}"
-
-          if ! gh api "${BASE_PATH}" >/dev/null 2>&1; then
-            echo "Package ghcr.io/${OWNER}/${PACKAGE} not found or accessible. Nothing to clean."
-            exit 0
-          fi
-
-          mapfile -t VERSION_IDS < <(gh api --paginate "${BASE_PATH}/versions?per_page=100" \
-            -q '.[] | select(.metadata.container.tags | length == 0) | .id')
-
-          if [[ ${#VERSION_IDS[@]} -eq 0 ]]; then
-            echo "No untagged versions to delete."
-            exit 0
-          fi
-
-          echo "Deleting ${#VERSION_IDS[@]} untagged versions from ghcr.io/${OWNER}/${PACKAGE}..."
-          for id in "${VERSION_IDS[@]}"; do
-            gh api -X DELETE "${BASE_PATH}/versions/${id}" >/dev/null
-            echo "Deleted version ${id}"
-          done
-
-          echo "Cleanup complete."