Raise error if process fails in execute_live

src/main/python/ddadevops/infrastructure/infrastructure.py

@@ -122,9 +122,11 @@ class ExecutionApi:
             print(command)
         else:
             process = Popen(command, shell=shell)
-            outs, _ = process.communicate()
+            outs, errs = process.communicate()
             while outs is not None:
                 stdout.buffer.write(outs)
+            if errs is not None:
+                raise RuntimeError(f"Execute live '{command}' failed with code {process.returncode}\n{errs}")
 
 
 class EnvironmentApi: