feat: check named argument spacing

Author: astratagem

Kleinweb/ruleset.xml

@@ -201,6 +201,7 @@ them to our own mu-plugin or standard library.
         </properties>
     </rule>
     <rule ref="SlevomatCodingStandard.Functions.DisallowEmptyFunction"/>
+    <rule ref="SlevomatCodingStandard.Functions.NamedArgumentSpacing"/>
     <rule ref="SlevomatCodingStandard.Functions.RequireArrowFunction"/>
     <rule ref="SlevomatCodingStandard.Functions.UnusedInheritedVariablePassedToClosure"/>
     <rule ref="SlevomatCodingStandard.Functions.UnusedParameter"/>