[devops] Build the spawner before running the tests.

Author: rolfbjarne

tools/devops/automation/templates/tests/run-tests.yml

@@ -79,8 +79,9 @@ steps:
     make -C src build/generator-frameworks.g.cs
     make -C src build/ios/Constants.cs
     make -C msbuild Versions.g.cs
+    make -C tools/spawner
   workingDirectory: $(System.DefaultWorkingDirectory)/$(BUILD_REPOSITORY_TITLE)
-  displayName: Generate constants files 
+  displayName: "Generate / compile dependencies"
   timeoutInMinutes: 15
 
 - pwsh: >-