ci: add Python-2.0 as a valid license

`Python-2.0` is in the same category as `MIT`, hence it's a valid license that we can allow.

This is needed for `verdaccio` version 5 which uses `argparse` which is licenced as `Python-2.0`.

(cherry picked from commit e1180ab)

Author: alan-agius4

scripts/validate-licenses.ts

@@ -30,6 +30,7 @@ const allowedLicenses = [
   'MIT',
   'ISC',
   'Apache-2.0',
+  'Python-2.0',
 
   'BSD-2-Clause',
   'BSD-3-Clause',