update docker.yml to streamline build and push process

.gitea/workflows/docker.yml

@@ -33,17 +33,6 @@ jobs:
           username: ${{ secrets.REGISTRY_USER }}
           password: ${{ secrets.REGISTRY_TOKEN }}
 
-      - name: Extract Docker metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ steps.reg.outputs.image }}
-          tags: |
-            type=raw,value=latest,enable=${{ gitea.ref == 'refs/heads/main' }}
-            type=semver,pattern={{version}}
-            type=semver,pattern={{major}}.{{minor}}
-            type=sha,prefix=sha-,format=short
-
       - name: Extract Docker metadata
         id: meta
         uses: docker/metadata-action@v5
@@ -54,3 +43,11 @@ jobs:
               type=semver,pattern={{version}}
               type=semver,pattern={{major}}.{{minor}}
               type=sha,prefix=sha-,format=short
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}