chore(deps): update dependency pytest to v9

Author: renovate[bot]

pyproject.toml

@@ -39,7 +39,7 @@ aws = ["boto3==1.40.65"]  # Alias for s3 for backward compatibility
 vault = ["hvac==2.4.0"]
 all = ["boto3==1.40.65", "hvac==2.4.0"]
 dev = [
-    "pytest==8.4.2",
+    "pytest==9.0.0",
     "pytest-cov==7.0.0",
     "pytest-mock==3.15.1",
     "pytest-xdist==3.8.0",