Add missing timeouts to mxs1929_start_from_scratch

maxscale-system-test/mxs1929_start_from_scratch.cpp

@@ -99,6 +99,7 @@ int main(int argc, char** argv)
     {
         for (const auto& cmd : commands)
         {
+            test.set_timeout(60);
             test.check_maxctrl(cmd);
         }
 
@@ -109,6 +110,7 @@ int main(int argc, char** argv)
 
     for (auto& a : threads)
     {
+        test.set_timeout(60);
         a.join();
     }