feat(server): refactor LookupWorkerByName to be a test method #14270

Job	Run time
set-product-version	5s
generate-metadata-file	24s
product-metadata	29s
Go 1.23.1 linux arm build	5m 22s
verify-product-metadata	4s
Go 1.23.1 linux arm64 build	3m 35s
Go 1.23.1 freebsd 386 build	4m 59s
Go 1.23.1 darwin amd64 build	6m 8s
Go 1.23.1 linux 386 build	5m 17s
Go 1.23.1 freebsd amd64 build	5m 32s
Go 1.23.1 darwin arm64 build	6m 1s
Go 1.23.1 linux amd64 build	6m 3s
Go 1.23.1 freebsd arm build	3m 2s
Go 1.23.1 windows 386 build	4m 51s
Go 1.23.1 windows amd64 build	5m 12s
Go 1.23.1 netbsd 386 build	2m 54s
Go 1.23.1 netbsd amd64 build	4m 52s
Go 1.23.1 netbsd arm build	4m 36s
Go 1.23.1 openbsd 386 build	4m 41s
Go 1.23.1 openbsd amd64 build	5m 7s
Go 1.23.1 openbsd arm build	5m 0s
Go 1.23.1 solaris amd64 build	3m 4s
Docker arm build	48s
Docker arm64 build	50s
Docker 386 build	49s
Docker amd64 build	51s
bats / CLI tests	13m 14s
Enos / setup	52s
Enos / Integration (e2e_aws builder:crt)	16m 6s
Enos / Integration (e2e_database)	5m 36s
Enos / Integration (e2e_docker_base builder:crt)	38m 22s
Enos / Integration (e2e_docker_base_plus builder:crt)	8m 36s
Enos / Integration (e2e_docker_base_with_vault builder:crt)	5m 21s
Enos / Integration (e2e_docker_base_with_worker builder:crt)	4m 35s
Enos / Integration (e2e_docker_worker_registration_controller_led builder:crt)	4m 29s
Enos / Integration (e2e_docker_worker_registration_worker_led builder:crt)	4m 17s
	3h 12m 4s

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