Update dependency @babel/preset-env to ^7.15.4

Author: renovate-bot

packages/skrt/package.json

@@ -16,7 +16,7 @@
     "@babel/core": "^7.14.6",
     "@babel/generator": "^7.14.5",
     "@babel/parser": "^7.14.7",
-    "@babel/preset-env": "^7.14.7",
+    "@babel/preset-env": "^7.15.4",
     "@babel/preset-react": "^7.14.5",
     "@babel/traverse": "^7.14.7",
     "@generates/cli": "^1.0.3",