Lint fix

[dependabot ignore]

Author: swissspidy

src/ScaffoldPackageCommand.php

@@ -108,7 +108,7 @@ public function package( $args, $assoc_args ) {
 
 		$package_root  = dirname( __DIR__ );
 		$template_path = $package_root . '/templates/';
-		$wp_cli_yml    = <<<EOT
+		$wp_cli_yml    = <<<'EOT'
 require:
   - hello-world-command.php
 EOT;