Merge pull request #35 from element-hq/rdanzey/multiarch

Try building multi-arch image

.github/workflows/docker-publish.yml

@@ -24,8 +24,16 @@ jobs:
     - name: Checkout repository
       uses: actions/checkout@v2
 
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v2
+      with:
+        platforms: 'arm64,arm'
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+
     - name: Log into registry ${{ env.REGISTRY }}
-      uses: docker/login-action@v1
+      uses: docker/login-action@v2
       with:
         registry: ${{ env.REGISTRY }}
         username: ${{ github.actor }}
@@ -38,7 +46,7 @@ jobs:
         images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
 
     - name: Build and push Docker image
-      uses: docker/build-push-action@v2
+      uses: docker/build-push-action@v3
       with:
         push: ${{ github.event_name != 'pull_request' }}
         tags: ${{ steps.meta.outputs.tags }}