clean up task locks

src/apps.js

@@ -164,6 +164,7 @@ const appTaskManager = require('./apptaskmanager.js'),
     eventlog = require('./eventlog.js'),
     fs = require('fs'),
     Location = require('./location.js'),
+    locks = require('./locks.js'),
     logs = require('./logs.js'),
     mail = require('./mail.js'),
     manifestFormat = require('@cloudron/manifest-format'),
@@ -2789,6 +2790,9 @@ async function backup(app, auditSource) {
         })
         .catch(async (error) => {
             await eventlog.add(eventlog.ACTION_APP_BACKUP_FINISH, auditSource, { app, success: false, errorMessage: error.message });
+        })
+        .finally(async () => {
+            await locks.releaseByTaskId(taskId);
         });
 
     await eventlog.add(eventlog.ACTION_APP_BACKUP, auditSource, { app, appId: app.id, taskId });