chore(deps): update babel monorepo to v7.15.4

Author: renovate-bot

package.json

@@ -15,8 +15,8 @@
     "warning": "^4.0.3"
   },
   "devDependencies": {
-    "@babel/cli": "7.14.8",
-    "@babel/core": "7.15.0",
+    "@babel/cli": "7.15.4",
+    "@babel/core": "7.15.4",
     "@researchgate/babel-preset": "2.0.12",
     "@researchgate/spire-config": "7.0.0",
     "@storybook/addon-options": "5.3.21",