chore: remove failing publish workflow due to missing docker in runner

.gitea/workflows/publish-runner.yml

@@ -1,39 +0,0 @@
-name: Publish Runner Image
-
-on:
-  push:
-    paths:
-      - 'docker/runner/**'
-      - '.gitea/workflows/publish-runner.yml'
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  push_to_registry:
-    name: Push Docker image to Docker Hub
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check out the repo
-        uses: actions/checkout@v3
-
-      - name: Log in to Docker Hub
-        uses: docker/login-action@v2
-        with:
-          username: ${{ secrets.DOCKER_USERNAME }}
-          password: ${{ secrets.DOCKER_PASSWORD }}
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
-
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
-
-      - name: Build and push Docker image
-        uses: docker/build-push-action@v4
-        with:
-          context: ./docker/runner
-          file: ./docker/runner/Dockerfile
-          push: true
-          tags: ${{ secrets.DOCKER_USERNAME }}/vibetorrent-runner:latest
-          platforms: linux/amd64,linux/arm64