Please mention `ahasura` client in Hasura docs

### Is your proposal related to a problem?

More like improvement. Current docs provide [an example of pretty basic Hasura client in Python](https://hasura.io/docs/latest/graphql/core/actions/codegen/python-flask/#graphql-request-client). It could be better.

### Describe the solution you'd like

My https://pypi.org/project/ahasura/ client has great design, both sync and async, docs, tests, is used in production.

Please add it to your docs to help other Hasura users to find it and get benefit from it.

### Describe alternatives you've considered

`ahasura` looks like the best one from all the alternatives in https://pypi.org/search/?q=hasura

### If the feature is approved, would you be willing to submit a PR?

I would be happy to submit a one-line PR. Please let me know if you approve the idea.

Start with the linked Hasura Python Flask documentation page containing the GraphQL request client example. Review how client recommendations are presented, then add a concise mention of the ahasura package if appropriate and verify the documentation change in the relevant docs workflow.

Written by the indexing model from the issue text.