remove continuations from broken build command

Author: euanh

.github/workflows/pull_request.yml

@@ -70,12 +70,7 @@ jobs:
             - name: Build the example
               run: |
                   cd Examples/HelloWorldHummingbird
-                  swift package \
-                      --allow-network-connections all \
-                      --swift-sdk x86_64-swift-linux-musl \
-                      build-container-image \
-                      --repository localhost:5000/hummingbird \
-                      --from scratch
+                  swift package --allow-network-connections all --swift-sdk x86_64-swift-linux-musl build-container-image --repository localhost:5000/hummingbird --from scratch
 
             - name: Run the example
               run: |