Add the setup-buildx-action and update build-push-action

Signed-off-by: Michael Irwin <[email protected]>

.github/workflows/build.yml

@@ -6,7 +6,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
     - name: Build
-      uses: docker/build-push-action@v1
+      uses: docker/build-push-action@v3
       with:
         push: false