Try to generate latest tags again

Author: Robinlovelace

.github/workflows/ci.yml

@@ -55,7 +55,7 @@ jobs:
           images: ghcr.io/geocompx/${{ matrix.image }}
           tags: |
             type=sha,enable=${{ github.event_name == 'push' }}
-            type=raw,value=latest,enable=${{ matrix.image == 'latest' }}
+            type=raw,value=latest,enable=${{ github.event_name == 'push' || github.event_name == 'workflow_dispatch' || github.event_name == 'schedule' }}
             type=raw,value={{date 'YYYY-MM-DD'}},enable=${{ github.event_name == 'schedule' }}
 
       - name: Set up QEMU
@@ -64,16 +64,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Prepare tags
-        id: prepare-tags
-        if: ${{ matrix.image == 'latest' }}
-        run: |
-          # Combine metadata-action tags and add the explicit latest tag on its own line
-          META='${{ steps.meta.outputs.tags }}'
-          printf "%s\nghcr.io/geocompx/latest\n" "$META" > all-tags.txt
-          echo "tags<<EOF" >> $GITHUB_OUTPUT
-          cat all-tags.txt >> $GITHUB_OUTPUT
-          echo "EOF" >> $GITHUB_OUTPUT
+  # ... no Prepare tags step; metadata-action will emit latest when appropriate
 
       - name: Login to GitHub Container Registry
         if: github.event_name == 'schedule' || github.event_name == 'push'
@@ -90,7 +81,7 @@ jobs:
           context: .
           file: ${{ matrix.dockerfile }}
           push: true
-          tags: ${{ steps.prepare-tags.outputs.tags && steps.prepare-tags.outputs.tags || steps.meta.outputs.tags }}
+          tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           secrets: |
             "GITHUB_PAT=${{ secrets.GITHUB_TOKEN }}"