python310Packages.setupmeta: Disable failing test

Uses deprecated setuptoos.installer method.

pkgs/development/python-modules/setupmeta/default.nix

···
     "test_clean"
     "test_scenario"
     "test_git_versioning"
+    # setuptools.installer and fetch_build_eggs are deprecated.
+    # Requirements should be satisfied by a PEP 517 installer.
+    "test_brand_new_project"
   ];
 
   pythonImportsCheck = [