build(package.json): allow to update only patch versions

Author: demianova

Diff for: src/main/frontend/package.json

@@ -5,9 +5,9 @@
   "private": true,
   "dependencies": {},
   "devDependencies": {
-    "babel-cli": "^6.26.0",
-    "babel-preset-env": "^1.7.0",
-    "babel-preset-react": "^6.24.1"
+    "babel-cli": "~6.26.0",
+    "babel-preset-env": "~1.7.0",
+    "babel-preset-react": "~6.24.1"
   },
   "scripts": {
     "build": "babel src --out-dir ../../../target/classes/js",