Merge branch 'fix/raise-default-test-timeout' into 'master'

[CI] Raise unit test timeout.

Closes #94

See merge request !167

cmake/modules/GeneratedSystemtests.cmake

@@ -73,7 +73,7 @@ function(dune_add_formcompiler_system_test)
                 )
 
       set_tests_properties(${tname} PROPERTIES SKIP_RETURN_CODE 77)
-      set_tests_properties(${tname} PROPERTIES TIMEOUT 20)
+      set_tests_properties(${tname} PROPERTIES TIMEOUT 60)
     endif()
   endforeach()
 endfunction()