chore(deps): update babel monorepo to v7.5.5

Author: renovate-bot

package.json

@@ -39,10 +39,10 @@
     "yargs": "^13.2.1"
   },
   "devDependencies": {
-    "@babel/core": "7.5.4",
-    "@babel/plugin-proposal-class-properties": "7.5.0",
-    "@babel/plugin-proposal-object-rest-spread": "7.5.4",
-    "@babel/preset-env": "7.5.4",
+    "@babel/core": "7.5.5",
+    "@babel/plugin-proposal-class-properties": "7.5.5",
+    "@babel/plugin-proposal-object-rest-spread": "7.5.5",
+    "@babel/preset-env": "7.5.5",
     "@babel/preset-typescript": "7.3.3",
     "@types/debug": "4.1.4",
     "@types/jest": "24.0.15",