Update babel monorepo to v7.9.6

Author: renovate-bot

Diff for: package.json

@@ -36,11 +36,11 @@
     "postbump": "yarn build:packages"
   },
   "devDependencies": {
-    "@babel/core": "7.9.0",
+    "@babel/core": "7.9.6",
     "@babel/plugin-proposal-class-properties": "7.8.3",
-    "@babel/plugin-proposal-object-rest-spread": "7.9.5",
-    "@babel/plugin-transform-runtime": "7.9.0",
-    "@babel/preset-env": "7.9.5",
+    "@babel/plugin-proposal-object-rest-spread": "7.9.6",
+    "@babel/plugin-transform-runtime": "7.9.6",
+    "@babel/preset-env": "7.9.6",
     "@babel/preset-react": "7.9.4",
     "@babel/preset-typescript": "7.9.0",
     "@pika/pack": "0.5.0",