feat(models): use rwkv from llama.cpp

[mudler]

Description

This PR drops the rwkv backend in favor of llama.cpp's rwkv implementation

Notes for Reviewers

Signed commits

• Yes, I signed my commits.

[github-actions]

yamllint Failed

Show Output

::group::gallery/rwkv.yaml
::error file=gallery/rwkv.yaml,line=23,col=19::23:19 [trailing-spaces] trailing spaces
::error file=gallery/rwkv.yaml,line=25,col=19::25:19 [new-line-at-end-of-file] no new line character at the end of file
::endgroup::

Workflow: Yamllint GitHub Actions, Action: __karancode_yamllint-github-action, Lint: gallery

[netlify]

✅ Deploy Preview for localai ready!

Name	Link
🔨 Latest commit	e88f72d
🔍 Latest deploy log	https://app.netlify.com/sites/localai/deploys/674594e286039b00087437a5
😎 Deploy Preview	https://deploy-preview-4264--localai.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.