Update pytest-xdist to 3.6.1 (cookiecutter#5035)

requirements.txt

@@ -13,7 +13,7 @@ pre-commit==3.7.0
 # ------------------------------------------------------------------------------
 tox==4.15.0
 pytest==8.2.0
-pytest-xdist==3.6.0
+pytest-xdist==3.6.1
 pytest-cookies==0.7.0
 pytest-instafail==0.5.0
 pyyaml==6.0.1