python311Packages.executing: Disable flaky test

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

@@ -45,6 +45,11 @@ buildPythonPackage rec {
   disabledTests = [
     # requires ipython, which causes a circular dependency
     "test_two_statement_lookups"
+
+    # Asserts against time passed using time.time() to estimate
+    # if the test runs fast enough. That makes the test flaky when
+    # running on slow systems or cross- / emulated building
+    "test_many_source_for_filename_calls"
   ];
 
   pythonImportsCheck = [