build(deps): bump the dev-dependencies group with 2 updates

Bumps the dev-dependencies group with 2 updates: [pytest-cov](https://github.com/pytest-dev/pytest-cov) and [ansys-sphinx-theme](https://github.com/ansys/ansys-sphinx-theme).


Updates `pytest-cov` from 5.0.0 to 6.0.0
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v5.0.0...v6.0.0)

Updates `ansys-sphinx-theme` from 1.1.7 to 1.2.0
- [Release notes](https://github.com/ansys/ansys-sphinx-theme/releases)
- [Commits](ansys/ansys-sphinx-theme@v1.1.7...v1.2.0)

---
updated-dependencies:
- dependency-name: pytest-cov
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dev-dependencies
- dependency-name: ansys-sphinx-theme
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -34,13 +34,13 @@ dependencies = [
 [project.optional-dependencies]
 tests = [
     "pytest==8.3.3",
-    "pytest-cov==5.0.0",
+    "pytest-cov==6.0.0",
     "click==8.1.7",
     "PyGithub==2.4.0",
     "gitpython==3.1.43",
 ]
 doc = [
-    "ansys-sphinx-theme==1.1.7",
+    "ansys-sphinx-theme==1.2.0",
     "numpydoc==1.8.0",
     "sphinx==8.1.3",
     "sphinx-autoapi==3.3.3",