test_scala_import_source_jar_should_not_be_fetched_when_env_bazel_jvm_fetch_sources_is_set_to_non_true is not working

It actually gets error `Command 'test_scala_import_fetch_sources' not found. Try 'bazel help'.`, but the message was silenced by `$runner`.

`action_should_fail` is designed to take a Bazel command, not a shell function.