credential_request: Fix changing password with credential request

ee64d50c (patches/CookieCrumbler: update patch for CMF 2.3, 2019-09-09)
introduced a NameError, getRequest was not imported.
3 jobs for fix/credential_request_password in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner2

02:21:29

failed ERP5.UnitTest-TestRunner2

02:11:17

failed ERP5.UnitTest-TestRunner2

04:40:25