chore(deps): update dependency trio to v0.28.0

examples/python/requirements.txt

@@ -1,6 +1,6 @@
 selenium==4.27.1
 pytest==8.3.4
-trio==0.27.0
+trio==0.28.0
 pytest-trio==0.8.0
 pytest-rerunfailures==14.0
 flake8==7.1.1