*: update scripts using assignRoleToPrincipal to use manage_assignRoleToPrincipals

Starting from PAS 1.10.0, assignRoleToPrincipal is private, only
manage_assignRoleToPrincipals can be used from restricted python.
3 jobs for feat/PAS-1.10.0 in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner2

01:05:55

passed ERP5.UnitTest-PluggableAuthService1.10.0

04:17:07

failed ERP5.UnitTest-TestRunner2

01:55:38