feat: Add initial AuthzQuerier implementation (#5919)

feat: Add initial AuthzQuerier implementation
- Adds package database/dbauthz that adds a database.Store implementation where each method goes through AuthZ checks
- Implements all database.Store methods on AuthzQuerier
- Updates and fixes unit tests where required
- Updates coderd initialization to use AuthzQuerier if codersdk.ExperimentAuthzQuerier is enabled

enterprise/coderd/coderd.go

@@ -144,7 +144,9 @@ func New(ctx context.Context, options *Options) (*API, error) {
 
 	if len(options.SCIMAPIKey) != 0 {
 		api.AGPL.RootHandler.Route("/scim/v2", func(r chi.Router) {
-			r.Use(api.scimEnabledMW)
+			r.Use(
+				api.scimEnabledMW,
+			)
 			r.Post("/Users", api.scimPostUser)
 			r.Route("/Users", func(r chi.Router) {
 				r.Get("/", api.scimGetUsers)