Bump @babel/polyfill from 7.8.7 to 7.12.1

Bumps [@babel/polyfill](https://github.com/babel/babel/tree/HEAD/packages/babel-polyfill) from 7.8.7 to 7.12.1.
- [Release notes](https://github.com/babel/babel/releases)
- [Commits](https://github.com/babel/babel/commits/v7.12.1/packages/babel-polyfill)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -29,7 +29,7 @@
   "homepage": "https://github.com/winzerhof-wurst/web#readme",
   "browserslist": "> 0.25%, not dead",
   "dependencies": {
-    "@babel/polyfill": "^7.8.7",
+    "@babel/polyfill": "^7.12.1",
     "@sentry/browser": "^5.16.1",
     "axios": "^0.21.1",
     "body-parser": "^1.19.0",