Bump @babel/polyfill from 7.6.0 to 7.7.0 (#1796)

Bumps [@babel/polyfill](https://github.com/babel/babel) from 7.6.0 to 7.7.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.6.0...v7.7.0)

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

package.json

@@ -13,7 +13,7 @@
     "not ie < 9"
   ],
   "dependencies": {
-    "@babel/polyfill": "^7.0.0",
+    "@babel/polyfill": "^7.7.0",
     "body-parser": "^1.19.0",
     "classnames": "^2.2.6",
     "cookie-parser": "^1.4.3",

yarn.lock

@@ -752,10 +752,10 @@
     "@babel/helper-create-regexp-features-plugin" "^7.7.0"
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/polyfill@^7.0.0":
-  version "7.6.0"
-  resolved "https://registry.yarnpkg.com/@babel/polyfill/-/polyfill-7.6.0.tgz#6d89203f8b6cd323e8d946e47774ea35dc0619cc"
-  integrity sha512-q5BZJI0n/B10VaQQvln1IlDK3BTBJFbADx7tv+oXDPIDZuTo37H5Adb9jhlXm/fEN4Y7/64qD9mnrJJG7rmaTw==
+"@babel/polyfill@^7.7.0":
+  version "7.7.0"
+  resolved "https://registry.yarnpkg.com/@babel/polyfill/-/polyfill-7.7.0.tgz#e1066e251e17606ec7908b05617f9b7f8180d8f3"
+  integrity sha512-/TS23MVvo34dFmf8mwCisCbWGrfhbiWZSwBo6HkADTBhUa2Q/jWltyY/tpofz/b6/RIhqaqQcquptCirqIhOaQ==
   dependencies:
     core-js "^2.6.5"
     regenerator-runtime "^0.13.2"