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] <[email protected]>

setup.cfg

@@ -37,7 +37,7 @@ install_requires =
     doct
     databroker
     dodal @ git+https://github.com/DiamondLightSource/python-dodal.git@3106d1f2e4f97bde92720d115c8fbb827ad374b1
-    pydantic<2.0 # See https://github.com/DiamondLightSource/python-artemis/issues/774
+    pydantic<3.0 # See https://github.com/DiamondLightSource/python-artemis/issues/774
 
 
 [options.extras_require]