Windows test for errors resource failing

[jakemac53]

See the skipped test in pkgs/dart_mcp_server/test/tools/dtd_test.dart, added in #149.

This is timing out for unknown reasons.

[jakemac53]

Listing as a bug for now, I haven't been able to actually try it on a windows machine yet. Could be just an infra issue with the test as well.