generate random password for initial okta login with heroku (#13798)
generate random password for initial okta login with heroku (#13798)

* generate random password for initial okta login with heroku

closes #13768

* fix password prompt and display of login at the end

* remove identity provider from prompt
vivekmore/generator-jhipster,ruddell/generator-jhipster,dynamicguy/generator-jhipster,jhipster/generator-jhipster,mraible/generator-jhipster,gmarziou/generator-jhipster,mraible/generator-jhipster,pascalgrimaud/generator-jhipster,gmarziou/generator-jhipster,atomfrede/generator-jhipster,pascalgrimaud/generator-jhipster,mraible/generator-jhipster,pascalgrimaud/generator-jhipster,ctamisier/generator-jhipster,dynamicguy/generator-jhipster,atomfrede/generator-jhipster,liseri/generator-jhipster,ruddell/generator-jhipster,vivekmore/generator-jhipster,atomfrede/generator-jhipster,liseri/generator-jhipster,dynamicguy/generator-jhipster,jhipster/generator-jhipster,pascalgrimaud/generator-jhipster,liseri/generator-jhipster,atomfrede/generator-jhipster,ctamisier/generator-jhipster,gmarziou/generator-jhipster,gmarziou/generator-jhipster,ctamisier/generator-jhipster,ruddell/generator-jhipster,liseri/generator-jhipster,mraible/generator-jhipster,ruddell/generator-jhipster,mraible/generator-jhipster,vivekmore/generator-jhipster,ruddell/generator-jhipster,dynamicguy/generator-jhipster,vivekmore/generator-jhipster,liseri/generator-jhipster,jhipster/generator-jhipster,pascalgrimaud/generator-jhipster,vivekmore/generator-jhipster,atomfrede/generator-jhipster,ctamisier/generator-jhipster,jhipster/generator-jhipster,jhipster/generator-jhipster,ctamisier/generator-jhipster,gmarziou/generator-jhipster