untar docker image file with log messages

[OrenGitHub]

from inside the dhscanner docker:

• when the specified workdir already exists:

  $ python dhscanner.py --workdir=workdir --input=example.tar
  [11/04/2024 ( 06:36:33 )] [WARNING]: specified workdir already exists !
  [11/04/2024 ( 06:36:33 )] [WARNING]: did you forget to specify --force ?
  [11/04/2024 ( 06:36:33 )] [WARNING]: invalid args - nothing was done 😳

• when the specified workdir does not exist:

  $ python dhscanner.py --workdir=workdir --input=example.tar
  [11/04/2024 ( 06:38:11 )] [INFO]: everything looks great - starting to untar 😃
  [11/04/2024 ( 06:38:14 )] [INFO]: everything looks great - finished untar 😃
  [11/04/2024 ( 06:38:15 )] [INFO]: found 2 first party js files
  [11/04/2024 ( 06:38:15 )] [DEBUG]: collected js: workdir/2fea73a09f3b1643d44ed7dd8d22957cc61bd0e1ab3eac2f7014b3860dd257a5/usr/app/main.js
  [11/04/2024 ( 06:38:15 )] [DEBUG]: collected js: workdir/5ce0533e8ae9b7cdd3e39fd24602046d4da3ef2335851f43e208e8380ec84e8e/usr/share/gitweb/static/gitweb.js