build(deps): Bump anyio in /testing/plugins_integration (#14658)

Bumps [anyio](https://github.com/agronholm/anyio) from 4.13.0 to 4.14.0.
- [Release notes](https://github.com/agronholm/anyio/releases)
- [Commits](agronholm/anyio@4.13.0...4.14.0)

---
updated-dependencies:
- dependency-name: anyio
  dependency-version: 4.14.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

testing/plugins_integration/requirements.txt

@@ -1,4 +1,4 @@
-anyio[trio]==4.13.0
+anyio[trio]==4.14.0
 django==6.0.6
 pytest-asyncio==1.4.0
 pytest-bdd==8.1.0