GenerateLockTask: stop using deprecated DomainObjectCollection.findAl… #407

Job	Run time
Gradle Wrapper Validation	5s
Gradle Plugin Publication Validation	0s
Gradle Build and Publish	0s
Gradle Build without Publish	0s
Gradle Wrapper Validation	8s
Gradle Plugin Publication Validation	50s
Gradle Build without Publish	0s
Gradle Build and Publish	-1s
	1m 2s

Provide feedback