chore: bump version to 0.2.1 [skip ci]

Author: github-actions[bot]

CHANGELOG.md

@@ -1,3 +1,22 @@
+## [v0.2.1](https://github.com/generative-computing/mellea/releases/tag/v0.2.1) - 2025-12-10
+
+### Feature
+
+* Test-based Evaluation with LLM-as-a-judge ([#225](https://github.com/generative-computing/mellea/issues/225)) ([`0f1f0f8`](https://github.com/generative-computing/mellea/commit/0f1f0f8eb12e60f7940e3ad5b40ce91ded73fc88))
+* Add a `code_interpreter` tool ([#232](https://github.com/generative-computing/mellea/issues/232)) ([`b03c964`](https://github.com/generative-computing/mellea/commit/b03c96439501146965cd123ce5046f2c5907acfb))
+
+### Fix
+
+* Add simple lock to hf generation to prevent using incorrect weights ([#237](https://github.com/generative-computing/mellea/issues/237)) ([`6b2a527`](https://github.com/generative-computing/mellea/commit/6b2a5276a426be87ce02fa89f49818535f211fa6))
+* Collection of small fixes ([#238](https://github.com/generative-computing/mellea/issues/238)) ([`2120112`](https://github.com/generative-computing/mellea/commit/2120112ee807da4e980eabc0df54b3aae12d2cd2))
+* Fix unused litellm import ([#246](https://github.com/generative-computing/mellea/issues/246)) ([`633bfd7`](https://github.com/generative-computing/mellea/commit/633bfd7198eac45f8c163fefcc910d9bf8a76151))
+* Minor updates to answer relevance ([#245](https://github.com/generative-computing/mellea/issues/245)) ([`bde9b4d`](https://github.com/generative-computing/mellea/commit/bde9b4dd91ab92af0f7a661e321bb9d701da0589))
+* Pre-commit file selection ([#243](https://github.com/generative-computing/mellea/issues/243)) ([`e70d307`](https://github.com/generative-computing/mellea/commit/e70d3075f92152f8bb1a519687575fc7f30ffe1b))
+
+### Documentation
+
+* Fixed copyright in LICENSE ([#210](https://github.com/generative-computing/mellea/issues/210)) ([`3087051`](https://github.com/generative-computing/mellea/commit/3087051f5fc102bb8e0319af6baf9d7a0222e6ef))
+
 ## [v0.2.0](https://github.com/generative-computing/mellea/releases/tag/v0.2.0) - 2025-11-19
 
 ### Feature

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "pdm.backend"
 
 [project]
 name = "mellea"
-version = "0.2.0"
+version = "0.2.1"
 authors = [
     { name = "Nathan Fulton", email = "[email protected]" },
     { name = "Hendrik Strobelt", email = "[email protected]" },