Bump pytest from 8.3.2 to 8.3.3 in /testbed

Bumps [pytest](https://github.com/pytest-dev/pytest) from 8.3.2 to 8.3.3.
- [Release notes](https://github.com/pytest-dev/pytest/releases)
- [Changelog](https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst)
- [Commits](pytest-dev/pytest@8.3.2...8.3.3)

---
updated-dependencies:
- dependency-name: pytest
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

testbed/pyproject.toml

@@ -11,7 +11,7 @@ test = [
     # that can target Android exclusively until 3.13 lands.
     "fonttools==4.53.1 ; sys.platform == 'linux'",
     "pillow==9.2.0",
-    "pytest==8.3.2",
+    "pytest==8.3.3",
     "pytest-asyncio==0.24.0",
 ]