Update docker-setup.mdx

[lhchingit]

revise the typo in the block of OIDC authentication

Revise the typo in the block of OIDC as follows: To configure with pre-shared authentication -> To configure with OIDC authentication

Description

As summary.

References

Review Checklist

• [x] 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]
• [x] 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

[linux-foundation-easycla[bot]]

The committers listed above are authorized under a signed CLA.

• :white_check_mark: login: lhchingit / name: LHCHIN (38cab1a34ea1661df7951db35b55196a1d94bed1)
• :white_check_mark: login: rhamzeh / name: Raghd Hamzeh (e29057c4e533e4412c3c6003a132aa0b6a82af91)

[rhamzeh]

Thanks for the PR @lhchingit - apologies for the time it took for a review, it slipped through the cracks.