add linting exclusion for tests directory back in (will address in se…

…parate PR)

phpcs.xml.dist

@@ -56,6 +56,7 @@
 	<exclude-pattern>/node_modules/*</exclude-pattern>
 	<exclude-pattern>/vendor/*</exclude-pattern>
 	<exclude-pattern>/assets/*</exclude-pattern>
+	<exclude-pattern>/tests/*</exclude-pattern>
 	<exclude-pattern>/bin/*</exclude-pattern>
 	<exclude-pattern>/data/*</exclude-pattern>
 	<exclude-pattern>/build/*</exclude-pattern>