Update pydantic requirement from <2.0 to <3.0

Updates the requirements on [pydantic](https://github.com/pydantic/pydantic) to permit the latest version.
- [Release notes](https://github.com/pydantic/pydantic/releases)
- [Changelog](https://github.com/pydantic/pydantic/blob/main/HISTORY.md)
- [Commits](pydantic/pydantic@v0.0.2...v2.0.2)

---
updated-dependencies:
- dependency-name: pydantic
  dependency-type: direct:production
...

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

pyproject.toml

@@ -51,7 +51,7 @@ dev = [
     "numpydoc",
 
     # For schema generation.
-    "pydantic<2.0",
+    "pydantic<3.0",
 ]
 
 [project.scripts]