Remove the connection of Docker image versions to theme versions (#142)

Author: felixoi

.github/workflows/build.yml

@@ -6,11 +6,12 @@ on:
     tags: [ '**' ]
   pull_request:
     branches: [ master ]
+  schedule:
+    - cron: '0 0 * * *'
 
 jobs:
   build:
     runs-on: ubuntu-latest
-    
     steps:
     - uses: actions/checkout@v2
     - name: Setup Node.js
@@ -70,17 +71,15 @@ jobs:
   publish-docker:
     runs-on: ubuntu-latest
     needs: build
-    if: startsWith(github.ref, 'refs/tags')
+    if: startsWith(github.ref, 'refs/heads/master')
     steps:
     - name: Docker Metadata
       id: docker_meta
       uses: docker/metadata-action@v3
       with:
         images: ghcr.io/spongepowered/sponge-docs-theme
-        flavor: |
-          latest=auto
         tags: |
-          type=semver,pattern={{version}}
+          latest
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v1
     - name: Set up Docker Buildx
@@ -95,7 +94,7 @@ jobs:
       uses: docker/build-push-action@v2
       with:
         push: true
-        tags: ${{ steps.docker_meta.outputs.tags }} 
+        tags: ${{ steps.docker_meta.outputs.tags }}
         labels: ${{ steps.docker_meta.outputs.labels }}
         build-args: |
           GITHUB_USER=${{ github.actor }}