remove push on commit to save on OCI storage

.forgejo/workflows/build-on-commit.yml

@@ -1,4 +1,4 @@
-name: Build and Publish Docker Image on Commit
+name: Build Docker Image on Commit
 
 on:
   push:
@@ -15,17 +15,12 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Test Docker Hello World
-        run: |
-          echo "Testing Docker connection..."
-          docker run hello-world
-
-      - name: Login to OCI registry
-        run: |
-          echo "${{ secrets.OCI_TOKEN }}" | docker login git.merith.xyz -u "${{ secrets.OCI_USER }}" --password-stdin
-
       - name: Build and push Docker image
         run: |
           REPO=git.merith.xyz/${{ github.repository }}
-          # Build and push multi-platform Docker images
-          docker build -t $REPO:${{ github.sha }} --push .
+
+          # Build Docker image
+          docker build -t $REPO:${{ github.sha }} .
+
+          # Remove the local image to save storage
+          docker rmi $REPO:${{ github.sha }}