build(deps): bump pytest-pyvista in the test-dependencies group

Bumps the test-dependencies group with 1 update: [pytest-pyvista](https://github.com/pyvista/pytest-pyvista).


Updates `pytest-pyvista` from 0.2.0 to 0.3.0
- [Release notes](https://github.com/pyvista/pytest-pyvista/releases)
- [Commits](pyvista/pytest-pyvista@v0.2.0...v0.3.0)

---
updated-dependencies:
- dependency-name: pytest-pyvista
  dependency-version: 0.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: test-dependencies
...

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

Author: dependabot[bot]

pyproject.toml

@@ -38,7 +38,7 @@ pyvistaqt = [
 tests = [
     "pytest==8.4.2",
     "pyvista==0.46.3",
-    "pytest-pyvista==0.2.0",
+    "pytest-pyvista==0.3.0",
     "pytest-cov==7.0.0",
     "pyside6==6.9.2",
 ]