paperless-ngx: disable flaky test

Author: SuperSandro2000

pkgs/by-name/pa/paperless-ngx/package.nix

@@ -283,6 +283,7 @@ python.pkgs.buildPythonApplication rec {
     # FileNotFoundError(2, 'No such file or directory'): /build/tmp...
     "test_script_with_output"
     "test_script_exit_non_zero"
+    "testDocumentPageCountMigrated"
     # AssertionError: 10 != 4 (timezone/time issue)
     # Due to getting local time from modification date in test_consumer.py
     "testNormalOperation"