Merge branch 'renovate/major-lerna-monorepo' into 'master'

Update dependency lerna to v4

See merge request !38

package.json

@@ -21,6 +21,6 @@
   "author": "",
   "license": "LGPL-2.1-or-later",
   "devDependencies": {
-    "lerna": "^3.22.1"
+    "lerna": "^4.0.0"
   }
 }