Merge pull request #404 from cakephp/5.x-error-on-group-use

error on group use declarations

Author: markstory

CakePHP/ruleset.xml

@@ -148,6 +148,7 @@
             <property name="allowFallbackGlobalConstants" type="boolean" value="true"/>
         </properties>
     </rule>
+    <rule ref="SlevomatCodingStandard.Namespaces.DisallowGroupUse"/>
     <rule ref="SlevomatCodingStandard.Namespaces.UnusedUses"/>
     <rule ref="SlevomatCodingStandard.Namespaces.UseDoesNotStartWithBackslash"/>
     <rule ref="SlevomatCodingStandard.Namespaces.UseFromSameNamespace"/>