Release version 0.2.1

- Bump pyproject.toml version 0.2.1.dev1 → 0.2.1
- Refresh uv.lock to match

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: hanstrompert

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "nsi_auth"
-version = "0.2.1.dev1"
+version = "0.2.1"
 license = "Apache-2.0"
 authors = [
     {name = "Hans Trompert", email = "hans.trompert@surf.net"},