Catch the AutoloadNotAllowedException also for legacy jobs

* same as #18839 for legacy jobs
* avoids spamming the log with useless entries

lib/private/backgroundjob/legacy/regularjob.php

@@ -22,10 +22,17 @@
 
 namespace OC\BackgroundJob\Legacy;
 
+use OCP\AutoloadNotAllowedException;
+
 class RegularJob extends \OC\BackgroundJob\Job {
 	public function run($argument) {
-		if (is_callable($argument)) {
-			call_user_func($argument);
+		try {
+			if (is_callable($argument)) {
+				call_user_func($argument);
+			}
+		} catch (AutoloadNotAllowedException $e) {
+			// job is from a disabled app, ignore
+			return null;
 		}
 	}
 }