Update dependency pytest to v9

elastic-renovate-prod[bot] · web-flow · commit 2be71f8ff301 · 2025-12-07T00:00:52.000Z
diff --git a/requirements.txt b/requirements.txt
@@ -8,7 +8,7 @@ types-protobuf==5.28.3.20241203
 
 # dev
 ruff==0.14.4
-pytest==8.4.2
+pytest==9.0.2
 pytest-cov==6.3.0
 pytest-asyncio==1.2.0
 pytest-mock==3.15.1
