[Chore] Remove psutil dependency from pytest-xdist configuration

Eliminates the optional 'psutil' dependency from the pytest-xdist configuration in project files.

This simplifies the dependency management for testing and avoids potential issues with unnecessary optional packages.

Author: a76yyyy

pyproject.toml

@@ -57,7 +57,7 @@ testing = [
     'pytest-mock',
     'pytest-pretty',
     'pytest-run-parallel',
-    "pytest-xdist[psutil]"
+    "pytest-xdist"
 ]
 linting = [{ include-group = "dev" }, "griffe", "black>=23.0", "ruff>=0.1.0", "mypy>=1.0"]
 codspeed = [