fix(auth): Tag Create Privileges were incorrectly using Dataset Create privileges (datahub-project#3683)

Author: jjoyce0510

datahub-graphql-core/src/main/java/com/linkedin/datahub/graphql/types/tag/TagType.java

@@ -154,7 +154,7 @@ private boolean isAuthorized(@Nonnull TagUpdateInput update, @Nonnull QueryConte
         return AuthorizationUtils.isAuthorized(
             context.getAuthorizer(),
             context.getAuthentication().getActor().toUrnStr(),
-            PoliciesConfig.DATASET_PRIVILEGES.getResourceType(),
+            PoliciesConfig.TAG_PRIVILEGES.getResourceType(),
             update.getUrn(),
             orPrivilegeGroups);
     }