fix: update user/relation/object regex validation.

[Toprun123]

Update the regex validation for user, relation, and object under CheckRequestTupleKey.

Updated regular expressions used for user, relation and object under CheckRequestTupleKey in the following manner:

• user: ^(?=.{2,512}$)(?:[a-z_-]+:(?:[a-zA-Z0-9_/#-]+|\*))$
• relation: ^[a-z]{1,50}$
• object: ^(?=.{2,256}$)(?:[a-z_-]+:(?:[a-zA-Z0-9_/-]+|\*))$

Description

I tried to follow the docs for this project to ensure the regex matches, if there is a mistake or edge case please correct me. This is also my first code-based PR so please correct me if i did not understand the issue properly.

References

This PR is to fix the problem mentioned in this issue #188

Review Checklist

• I have clicked on "allow edits by maintainers".
• I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
• The correct base branch is being used, if not main
• I have added tests to validate that the change in functionality is working as expected
  • I'm sorry but I do not understand how and where I am meant to add tests for this.

[linux-foundation-easycla]

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• ✅ login: Toprun123 / name: Syed Daanish (21413e4, 07d9e64, d6407ed, 2cbcb13)