Update dependency pytest to v8.4.0

Author: renovate[bot]

requirements.txt

@@ -17,7 +17,7 @@ pycodestyle==2.13.0
 pyflakes==3.3.2
 pylint==3.3.7
 pyright==1.1.401
-pytest==8.3.5
+pytest==8.4.0
 pytest-cov==6.1.1
 tomli==2.2.1
 tomlkit==0.13.2