Exclude .playground from phpcs checks

Author: ajaydsouza

phpcs.xml.dist

@@ -6,12 +6,11 @@
 	<exclude-pattern>*/node_modules/*</exclude-pattern>
 	<exclude-pattern>*/phpunit/*</exclude-pattern>
 	<exclude-pattern>*/vendor/*</exclude-pattern>
-	<exclude-pattern>*/include/vendor/*</exclude-pattern>
 	<exclude-pattern>*/tests/*</exclude-pattern>
 	<exclude-pattern>*/index.php</exclude-pattern>
 	<exclude-pattern>*/index.asset.php</exclude-pattern>
-	<exclude-pattern>*/freemius-api/*</exclude-pattern>
 	<exclude-pattern>*/freemius/*</exclude-pattern>
+	<exclude-pattern>*/.playground/*</exclude-pattern>
 
 	<!-- Only check PHP files. -->
 	<arg name="extensions" value="php"/>
@@ -31,7 +30,6 @@
 		<exclude name="Universal.Files.SeparateFunctionsFromOO.Mixed" />
 	</rule>
 	<rule ref="WordPress.Files.FileName">
-		<exclude-pattern>*/phpunit/tests/*\.php$</exclude-pattern>
 	</rule>
 
 	<!-- Add in some extra rules from other standards. -->