ci: use arm runner instead of qemu (#754)

* ci: switch from qemu-arm to arm runner

* ci: build dockerimage on each pull request

Author: jusito

.github/workflows/docker.yml

@@ -2,49 +2,40 @@ name: Docker Image
 
 on:
   push:
-    branches: [ development ]
+    branches: [ master, development ]
+  pull_request:
+    branches: [ master, development ]
 
 jobs:
   push_to_registries:
     name: Push Docker image to multiple registries
-    runs-on: ubuntu-24.04
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-24.04, ubuntu-24.04-arm]
     permissions:
       packages: write
       contents: read
     steps:
       - name: Check out the repo
         uses: actions/checkout@v4
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-      # If we want to publish an image of PhASAR to the official docker hub we
-      # can just use the following code and set the corresponding secrets.
-      # - name: Log in to Docker Hub
-      #   uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
-      #   with:
-      #     username: ${{ secrets.DOCKER_USERNAME }}
-      #     password: ${{ secrets.DOCKER_TOKEN }}
-
       - name: Log in to the Container registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-
       - name: Extract metadata (tags, labels) for Docker
         id: meta
         uses: docker/metadata-action@v4
         with:
           images: ghcr.io/${{ github.repository }}
-            # here we could add a second image for the official docker registry
-            # sse/phasar
       - name: Build and push Docker images
         uses: docker/build-push-action@v6
         with:
           context: .
-          platforms: linux/amd64,linux/arm64
-          push: true
+          push: ${{ github.ref == 'refs/heads/development' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}