Require event_name to be push for Docker Hub

Instead of just checking if it's not pull_request

.github/workflows/docker.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Log in to Docker Hub
-        if: github.event_name != 'pull_request'
+        if: github.event_name == 'push'
         uses: docker/login-action@v2
         with:
           username: infinitime
@@ -36,7 +36,7 @@ jobs:
           file: ./docker/Dockerfile
           platforms: linux/amd64,linux/arm64
           builder: ${{ steps.buildx.outputs.name }}
-          push: ${{ github.event_name != 'pull_request' }}
+          push: ${{ github.event_name == 'push' }}
           tags: infinitime/infinitime-build:latest
           cache-from: type=registry,ref=infinitime/infinitime-build:buildcache
           cache-to: type=registry,ref=infinitime/infinitime-build:buildcache,mode=max