enterprise: fix read_only activating when no license is installed #18224

Job	Run time
lint-golint	36s
test-unittest	2m 36s
ci-outpost-mark	1s
build-container (proxy)	3m 39s
build-binary (proxy, linux, amd64)	1m 41s
build-container (ldap)	2m 10s
build-binary (proxy, linux, arm64)	1m 58s
build-container (radius)	2m 3s
build-binary (ldap, linux, amd64)	1m 39s
build-container (rac)	7m 1s
build-binary (ldap, linux, arm64)	1m 56s
build-binary (radius, linux, amd64)	2m 16s
build-binary (radius, linux, arm64)	1m 51s
build-binary (rac, linux, amd64)	1m 40s
build-binary (rac, linux, arm64)	2m 1s
	33m 8s

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