Fix poetry installation (newline in description)

[chenrui333]

$ poetry install .

The Poetry configuration is invalid:
  - [description] 'GraphQL-core is a Python port of GraphQL.js,\n the JavaScript reference implementation for GraphQL.' does not match '^[^\n]*$'

fixes relates to #178
relates to Homebrew/homebrew-core#109642

[Cito]

Thanks for the heads up. I think it suffices to put a backslash after the comma, can you try that out? I'd like to avoid overly long lines.

[chenrui333]

yeah, totally

[chenrui333]

that works, just refreshed the PR. thanks!

[Cito]

That's better, but I think you can actually remove the first backslash. The string is left-trimmed automatically. At least I think so. Can you check that as well?

[chenrui333]

yeah, you are right, only backslash is needed

[chenrui333]

let me know if anything else needed.

[Cito]

Thanks for contributing. Will try to cut a new release soon.