chore: bump version to v2.1.1

Author: Kos-M

package-lock.json

@@ -1,6 +1,6 @@
 {
     "name": "queue-xec-master",
-    "version": "2.1.0",
+    "version": "2.1.1",
     "description": "Master queue, push jobs and gathers results from online workers.",
     "main": "index.js",
     "scripts": {
@@ -51,4 +51,4 @@
             "utils"
         ]
     }
-}
+}