Validation of polywrap.yaml fails when abi import has an @ in the path

[fetsorn]

Describe the bug
Polywrap failed validation of polywrap.yaml when I set import_abis[0].abi path to "./node_modules/@fetsorn/package".
The error seems to occur only when the "at sign", "@" is in the path. If I alias the package to "./node_modules/package", the validation succeeds.
The error said that the path doesn't match the pattern. The same schema and pattern correctly validate a json file with such path, so perhaps the issue is caused by yaml parsing.

Please provide the steps to reproduce and if possible a minimal demo of the problem.
Open any project and add import_abis to polywrap.yaml with a path to "./node_modules/@user/package".

Expected behavior
abi resolves correctly when path has an "at sign", "@".

Relevant environment details:

• linux x64, polywrap 0.9.2