testing: add helpers and migrate to JHipster helpers #35259

Job	Run time
build-matrix	5s
ng-default (n20.17.0/j22)	2m 10s
ng-default-additional (n20.17.0/j17)	1m 58s
ng-mysql-es-noi18n-mapsid (n20/j17)	1m 29s
ng-mongodb-kafka-cucumber (n20/j21)	1m 32s
ng-h2mem-ws-nol2 (n20.17.0/j21)	1m 49s
ng-gradle-fr (n20/j22)	1m 49s
ng-gradle-mariadb-oauth2-infinispan (n20/j22)	1m 30s
ng-gradle-h2disk-ws-nocache (n20/j22)	1m 33s
ng-webflux-mongodb (n20/j21)	1m 53s
ng-webflux-gradle-mongodb-oauth2 (n20/j21)	3m 15s
ng-webflux-psql-default (n20/j22)	1m 43s
ng-webflux-psql-additional (n20/j22)	1m 12s
ng-webflux-gradle-session-h2mem-es (n18/j17)	1m 23s
ms-ng-oauth2-mongodb-caffeine (n18/j17)	2m 12s
mf-ng-eureka-jwt-psql-ehcache (n20.17.0/j17)	2m 1s
ms-mf-ng-consul-oauth2-neo4j (n20.17.0/j17)	1m 58s
check-angular	1s
	29m 33s

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