Tests: bump pytest-asyncio>=0.25.2 (#3733)

Fixes "coroutine method 'aclose' of <async_generator> was never awaited"
warnings in pytest logs

See: pytest-dev/pytest-asyncio#759
See: pytest-dev/pytest-asyncio#1034

Author: un-def

pyproject.toml

@@ -138,7 +138,7 @@ filterwarnings = [
 dev = [
     "pre-commit>=4.2.0",
     "pytest~=8.0",
-    "pytest-asyncio>=0.23.8",
+    "pytest-asyncio>=0.25.2",
     "pytest-mock>=3.14.0",
     "pytest-httpbin>=2.1.0",
     "pytest-socket>=0.7.0",