fix workflow

.github/workflows/docker-image.yml

@@ -3,8 +3,6 @@ name: Docker Image CI
 on:
   push:
     branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
 
 jobs:
   build_amd64: 
@@ -19,7 +17,11 @@ jobs:
 
     - uses: actions/checkout@v4
     - name: Build and push the Docker image
-      run: docker build . --push --file Dockerfile --tag ${{ secrets.DOCKERHUB_USERNAME }}/discord-bot
+      run: docker build . --file Dockerfile --tag ${{ secrets.DOCKERHUB_USERNAME }}/discord-bot
+
+    - uses: actions/checkout@v4
+    - name: Push the Docker image
+      run: docker push ${{ secrets.DOCKERHUB_USERNAME }}/discord-bot
 
   build_arm64: 
     runs-on: self-hosted