ci: add macos-latest as runner and remove 3.x from target for test wo… #113

Job	Run time
build (17)	8m 9s
build (21)	9m 8s
test (17, quarkus, firefox)	4m 34s
test (17, springboot, firefox)	4m 55s
test (17, quarkus-keycloak, firefox)	5m 47s
test (21, quarkus, firefox)	5m 3s
test (21, springboot, firefox)	4m 56s
test (21, quarkus-keycloak, firefox)	6m 4s
publish-results	25s
	49m 1s

Provide feedback