Fix typo in command for selecting relevant images

[Ryoo72]

When running the command as-is, the following error occurs. This needs to be fixed:

Traceback (most recent call last):
  File "/w/kwangrok/ds_vsr/visual-spatial-reasoning/data/select_only_revlevant_images.py", line 6, in <module>
    with open(sys.argv[1], "r") as f:
         ^^^^^^^^^^^^^^^^^^^^^^