pip(deps): bump openapi-core from 0.20.0 to 0.23.1

Bumps [openapi-core](https://github.com/python-openapi/openapi-core) from 0.20.0 to 0.23.1.
- [Release notes](https://github.com/python-openapi/openapi-core/releases)
- [Commits](python-openapi/openapi-core@0.20.0...0.23.1)

---
updated-dependencies:
- dependency-name: openapi-core
  dependency-version: 0.23.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

poetry.lock

@@ -30,7 +30,7 @@ lxml = "^6.1.0"
 xmlformatter = "^0.2.8"
 pytest-check = "^2.6.2"
 requests = "^2.32.5"
-openapi-core = "^0.20.0"
+openapi-core = "^0.23.1"
 werkzeug = ">=3.1.6"