chore(deps): update dependency pytest to v9

Ref: PACT-445

Author: pactflow-renovate-bot[bot]

pyproject.toml

@@ -16,7 +16,7 @@ build-backend = "poetry.core.masonry.api"
 python = "^3.11"
 
 [tool.poetry.dev-dependencies]
-pytest = "8.4.1"
+pytest = "9.0.1"
 pytest-asyncio = "1.1.0"
 pytest-mock = "3.14.1"
 pact-python = "2.3.1"