chore: Refactor `CommitPubRand` #515

Job	Run time
docker_pipeline / prepare-metadata	1s
lint_test / check-mock-gen	0s
lint_test / build	48s
lint_test / gosec	2m 41s
lint_test / integration-tests	26m 1s
lint_test / lint	1m 45s
lint_test / unit-tests	1m 32s
docker_pipeline / docker_build (linux/amd64, ubuntu-24.04)	3m 18s
docker_pipeline / docker_build (linux/arm64, ubuntu-24.04-arm64)	3m 29s
docker_pipeline / merge_ecr	0s
docker_pipeline / merge_dockerhub	0s
	39m 35s

Provide feedback