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@v1.8.2...v2.9.2)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements/constraints.txt

@@ -35,7 +35,7 @@ urllib3>=1.26.5                               # https://github.com/advisories/GH
 
 # SEE https://github.com/ITISFoundation/osparc-simcore/issues/4481
 fastapi<0.100.0
-pydantic<2.0
+pydantic<3.0
 
 # TODO: includes async features https://docs.sqlalchemy.org/en/14/changelog/migration_20.html
 sqlalchemy<2.0