Bump the actions group with 2 updates

Updates the requirements on [openapi-core](https://github.com/python-openapi/openapi-core) and [pytest](https://github.com/pytest-dev/pytest) to permit the latest version.

Updates `openapi-core` to 0.19.0
- [Release notes](https://github.com/python-openapi/openapi-core/releases)
- [Commits](python-openapi/openapi-core@0.18.0...0.19.0)

Updates `pytest` to 8.0.2
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@7.0.0...8.0.2)

---
updated-dependencies:
- dependency-name: openapi-core
  dependency-type: direct:production
  dependency-group: actions
- dependency-name: pytest
  dependency-type: direct:production
  dependency-group: actions
...

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

pyproject.toml

@@ -65,19 +65,19 @@ docs = [
   "jinja2<3.2.0"
 ]
 openapi = [
-  "openapi_core~=0.18.0",
+  "openapi_core>=0.18,<0.20",
   "ruamel.yaml",
 ]
 test = [
   "hatch",
   "ipykernel",
   "pytest-jupyter[server]>=0.6.2",
-  "openapi_core~=0.18.0",
+  "openapi_core>=0.18,<0.20",
   "openapi-spec-validator>=0.6.0,<0.8.0",
   "sphinxcontrib_spelling",
   "requests_mock",
   "ruamel.yaml",
-  "pytest>=7.0,<8",
+  "pytest>=7.0,<9",
   "pytest-console-scripts",
   "pytest-cov",
   "pytest-timeout",