docs(kafka): add recent kafka enhancements

[sicoyle]

Thank you for helping make the Dapr documentation better!

Please follow this checklist before submitting:

• [X] Commits are signed with Developer Certificate of Origin (DCO - learn more)
• [X] Read the contribution guide
• [X] Commands include options for Linux, MacOS, and Windows within codetabs
• [ ] New file and folder names are globally unique
• [ ] Page references use shortcodes instead of markdown or URL links
• [ ] Images use HTML style and have alternative text
• [ ] Places where multiple code/command options are given have codetabs

In addition, please fill out the following to help reviewers understand this pull request:

Description

Add new kafka metadata fields with some recent PRs getting merged. https://github.com/dapr/components-contrib/pull/3375 https://github.com/dapr/components-contrib/pull/3371

Issue reference

[github-actions[bot]]

Stale PR, paging all reviewers

[marcduiker]

@holopin-bot @sicoyle Thanks Sam! 😁

[holopin-bot[bot]]

Congratulations @sicoyle, you just earned a badge! Here it is: https://holopin.io/claim/clvdu5dy0128500flalvjsyh4f

This badge can only be claimed by you, so make sure that your GitHub account is linked to your Holopin account. You can manage those preferences here: https://holopin.io/account. Or if you're new to Holopin, you can simply sign up with GitHub, which will do the trick!