fix: method signature from reqeust to request

[Morgadoooo]

This PR adds support for retrieving the key type in the response of the /meta endpoint in CubeJS.

When designing views to be queried via the REST API, it is useful to know all available views (cubes) and their key types upfront. This enhancement makes the /meta endpoint more informative, helping consumers programmatically discover and work with the designed views more effectively.

Also, proposition to change the naming from reqeust to request for method signature that use them

[Morgadoooo]

Didn't saw this one #17 before proposing mine. I'm fine with closing my PR, but i'd say the reqeust can be confusing

[mharrisb1]

@Morgadoooo I will use #17 as the PR for adding type but I would still like to merge your PR since it fixes some typos. I will change the title of the PR to reflect that change specifically. Please revert the change for adding type and the enum (though appreciated) as well as the version bump from this PR so I can merge.

Also for future reference:

1. I prefer using literals as opposed to enums for Pydantic type validation. This will keep it consistent with other type definitions in this package
2. I update the version in a separate step outside of PRs so no need to do that manually

Thanks for the contribution. Looking forward to more 👍