remove old workflow

.github/workflows/manual-docker-build.yml

@@ -1,45 +0,0 @@
-name: Temporary manual trigger for Docker build
-
-on:
-  workflow_dispatch:
-
-jobs:
-  build_docker:
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-      contents: read
-    steps:
-      - name: Clone Repo
-        uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4
-
-      - name: Set lowercase repository owner
-        run: echo "REPO_OWNER_LC=${GITHUB_REPOSITORY_OWNER,,}" >> $GITHUB_ENV
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3
-
-      - name: Log in to the GitHub Container registry
-        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push Docker images
-        uses: docker/build-push-action@ca052bb54ab0790a636c9b5f226502c73d547a25 # v5
-        with:
-          context: .
-          platforms: linux/amd64,linux/arm64
-          push: true
-          tags: >-
-            ghcr.io/${{ env.REPO_OWNER_LC }}/reticulum-meshchat:latest,
-            ghcr.io/${{ env.REPO_OWNER_LC }}/reticulum-meshchat:${{ github.ref_name }}
-          labels: >-
-            org.opencontainers.image.title=Reticulum MeshChat,
-            org.opencontainers.image.description=Docker image for Reticulum MeshChat,
-            org.opencontainers.image.url=https://github.com/${{ github.repository }}/pkgs/container/reticulum-meshchat/
-