Update keycloak_flow_execution to handle script authenticators #530

Job	Run time
Puppet 7 (Ruby 2.7.8 fixtures=.fixtures.yml)	1m 23s
puppet7 el8 (keycloak=25.0.1 full=no)	5m 57s
Puppet 8 (Ruby 3.2.3 fixtures=.fixtures.yml)	1m 22s
puppet8 el8 (keycloak=25.0.1 full=no)	5m 59s
Puppet 7 (Ruby 2.7.7 fixtures=.fixtures-latest.yml)	1m 27s
puppet7 el9 (keycloak=25.0.1 full=no)	5m 25s
Puppet 8 (Ruby 3.2.2 fixtures=.fixtures-latest.yml)	1m 20s
puppet8 el9 (keycloak=25.0.1 full=no)	5m 48s
puppet7 debian-11 (keycloak=25.0.1 full=no)	6m 21s
puppet8 debian-11 (keycloak=25.0.1 full=no)	6m 20s
puppet7 ubuntu-2004 (keycloak=25.0.1 full=no)	7m 8s
puppet8 ubuntu-2004 (keycloak=25.0.1 full=no)	6m 41s
puppet7 ubuntu-2204 (keycloak=25.0.1 full=no)	6m 44s
puppet8 ubuntu-2204 (keycloak=25.0.1 full=no)	6m 19s
puppet7 el8 (keycloak=25.0.1 full=yes)	47m 13s
puppet8 el8 (keycloak=25.0.1 full=yes)	47m 4s
	2h 42m 31s

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