refactor(authz): use a struct for user access control info operations #7730

Job	Run time
Build and test ZOT	1s
Build and test ZOT (linux, amd64)	32m 25s
Build and test ZOT (linux, arm64)	12m 14s
Build and test ZOT (darwin, amd64)	5m 37s
Build and test ZOT (darwin, arm64)	11m 38s
Build and test ZOT (freebsd, amd64)	12m 39s
Build and test ZOT (freebsd, arm64)	15m 2s
Push OCI images to GitHub Packages	0s
Update Helm Chart	0s
	1h 29m 36s

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