build(deps): Bump pytest-asyncio in /testing/plugins_integration (#11878)

Bumps [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) from 0.23.3 to 0.23.4.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v0.23.3...v0.23.4)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

testing/plugins_integration/requirements.txt

@@ -1,6 +1,6 @@
 anyio[curio,trio]==4.2.0
 django==5.0
-pytest-asyncio==0.23.3
+pytest-asyncio==0.23.4
 # Temporarily not installed until pytest-bdd is fixed:
 # https://github.com/pytest-dev/pytest/pull/11785
 # pytest-bdd==7.0.1