Bump polyfactory from 2.21.0 to 2.22.2

Bumps [polyfactory](https://github.com/litestar-org/polyfactory) from 2.21.0 to 2.22.2.
- [Release notes](https://github.com/litestar-org/polyfactory/releases)
- [Changelog](https://github.com/litestar-org/polyfactory/blob/main/docs/changelog.rst)
- [Commits](litestar-org/polyfactory@v2.21.0...v2.22.2)

---
updated-dependencies:
- dependency-name: polyfactory
  dependency-version: 2.22.2
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -50,7 +50,7 @@ pytest-nhsd-apim = "^5.0.0"
 aiohttp = "^3.12.15"
 awscli = "^1.37.24"
 awscli-local = "^0.22.0"
-polyfactory = "^2.20.0"
+polyfactory = "^2.22.2"
 pyright = "^1.1.403"
 brunns-matchers = "^2.9.0"
 localstack = "^4.6.0"