fix : warning php en moins si plugins déjà installés

Warning: Undefined variable $todo

src/Command/PluginsSvpTelecharger.php

@@ -66,6 +66,7 @@ class PluginsSvpTelecharger extends PluginsActiver
 			foreach ($actions as $action) {
 				$this->io->comment("\t".$action);
 			}
+			$todo = [];
 			foreach ($decideur->todo as $_todo) {
 				$todo[$_todo['i']] = $_todo['todo'];
 			}