Update babel monorepo to v7.10.4 (#196)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -32,8 +32,8 @@
     "webworkers"
   ],
   "devDependencies": {
-    "@babel/core": "7.10.3",
-    "@babel/plugin-proposal-class-properties": "^7.10.1",
+    "@babel/core": "7.10.4",
+    "@babel/plugin-proposal-class-properties": "^7.10.4",
     "babel-eslint": "^10.1.0",
     "eslint": "7.3.1",
     "eslint-config-bliss": "5.0.0",