chore(deps): update dependency pytest to v8

Author: renovate[bot]

poetry.lock

@@ -26,7 +26,7 @@ requests = { version = "^2.26.0", optional = true }
 GitPython = { version = "^3.1.24", optional = true }
 
 [tool.poetry.dev-dependencies]
-pytest = "^7.0.0"
+pytest = "^8.0.0"
 black = "^21.6b0"
 poethepoet = "^0.24.0"
 pre-commit = "^2.15.0"