chore(rye): bump sse-starlette from 1.8.2 to 2.1.3

Bumps [sse-starlette](https://github.com/sysid/sse-starlette) from 1.8.2 to 2.1.3.
- [Release notes](https://github.com/sysid/sse-starlette/releases)
- [Changelog](https://github.com/sysid/sse-starlette/blob/main/CHANGELOG.md)
- [Commits](sysid/sse-starlette@v1.8.2...v2.1.3)

---
updated-dependencies:
- dependency-name: sse-starlette
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements-colab.txt

@@ -1264,7 +1264,7 @@ sqlalchemy==2.0.31
     # via langchain
     # via langchain-community
     # via langchain-postgres
-sse-starlette==1.8.2
+sse-starlette==2.1.3
     # via langserve
 stack-data==0.6.3
     # via ipython