chore(deps): Update pytest-asyncio requirement

Updates the requirements on [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) to permit the latest version.
- [Release notes](https://github.com/pytest-dev/pytest-asyncio/releases)
- [Commits](pytest-dev/pytest-asyncio@v0.20.0...v0.25.0)

---
updated-dependencies:
- dependency-name: pytest-asyncio
  dependency-type: direct:production
...

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

pyproject.toml

@@ -59,7 +59,7 @@ dev = [
     "pylsp-mypy >=0.6,<0.7",
     "pylsp-rope >=0.1,<0.2",
     "pytest >=7.1,<9.0",
-    "pytest-asyncio >=0.20,<0.25",
+    "pytest-asyncio >=0.20,<0.26",
     "pytest-cov >=4,<7",
     "python-lsp-server >=1.5,<2.0",
     "reuse >=4.0,<6.0",