tests: update test-remotefilelog-gc.t for Python 3.11

The test output changed because test coverage changed because normpath changed:

  $ python3.10 -c 'import os; print(repr(os.path.normpath("asdas\0das")))'
  'asdas\x00das'

  $ python3.11 -c 'import os; print(repr(os.path.normpath("asdas\0das")))'
  'asdas'

tests/test-remotefilelog-gc.t

@@ -106,6 +106,11 b''
 # Test that warning is displayed when the repo path is malformed
 
   $ printf "asdas\0das" >> $CACHEDIR/repos
+#if py311
+  $ hg gc
+  finished: removed 0 of 4 files (0.00 GB to 0.00 GB)
+#else
   $ hg gc
   abort: invalid path asdas\x00da: .*(null|NULL).* (re)
   [255]
+#endif