restore docker build

.github/workflows/test-build-prs.yaml

@@ -4,25 +4,25 @@ on:
   pull_request:
 
 jobs:
-  # docker:
-  #   runs-on: ubuntu-latest
-  #   steps:
-  #   - name: Checkout
-  #     uses: actions/checkout@v2
-  #   - name: Set Swap Space
-  #     uses: pierotofy/set-swap-space@master
-  #     with:
-  #       swap-size-gb: 12
-  #   - name: Set up QEMU
-  #     uses: docker/setup-qemu-action@v1
-  #   - name: Set up Docker Buildx
-  #     uses: docker/setup-buildx-action@v1
-  #   - name: Build
-  #     uses: docker/build-push-action@v2
-  #     with:
-  #       file: ./portable.Dockerfile
-  #       platforms: linux/amd64
-  #       push: false
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: Set Swap Space
+      uses: pierotofy/set-swap-space@master
+      with:
+        swap-size-gb: 12
+    - name: Set up QEMU
+      uses: docker/setup-qemu-action@v1
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v1
+    - name: Build
+      uses: docker/build-push-action@v2
+      with:
+        file: ./portable.Dockerfile
+        platforms: linux/amd64
+        push: false
   
   # snapcraft:
   #   runs-on: ubuntu-latest