0.12.4

Pinned litellm library version
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## What's Changed
* fix: detect uv installed via curl script by @ishan0102 in https://github.com/browser-use/browser-use/pull/4478
* frozen litellm version by @sauravpanda in https://github.com/browser-use/browser-use/pull/4509
* Update pyproject.toml by @sauravpanda in https://github.com/browser-use/browser-use/pull/4511

## New Contributors
* @ishan0102 made their first contribution in https://github.com/browser-use/browser-use/pull/4478

**Full Changelog**: https://github.com/browser-use/browser-use/compare/0.12.3...0.12.4