Bump @babel/polyfill from 7.7.0 to 7.8.3

Bumps [@babel/polyfill](https://github.com/babel/babel) from 7.7.0 to 7.8.3.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.7.0...v7.8.3)

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

package-lock.json

@@ -2316,9 +2316,9 @@
 			}
 		},
 		"@babel/polyfill": {
-			"version": "7.7.0",
-			"resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.7.0.tgz",
-			"integrity": "sha512-/TS23MVvo34dFmf8mwCisCbWGrfhbiWZSwBo6HkADTBhUa2Q/jWltyY/tpofz/b6/RIhqaqQcquptCirqIhOaQ==",
+			"version": "7.8.3",
+			"resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.8.3.tgz",
+			"integrity": "sha512-0QEgn2zkCzqGIkSWWAEmvxD7e00Nm9asTtQvi7HdlYvMhjy/J38V/1Y9ode0zEJeIuxAI0uftiAzqc7nVeWUGg==",
 			"requires": {
 				"core-js": "^2.6.5",
 				"regenerator-runtime": "^0.13.2"

package.json

@@ -26,7 +26,7 @@
 		"test:coverage": "jest --coverage"
 	},
 	"dependencies": {
-		"@babel/polyfill": "^7.7.0",
+		"@babel/polyfill": "^7.8.3",
 		"@babel/runtime": "^7.8.0",
 		"@nextcloud/l10n": "^1.0.1",
 		"@nextcloud/router": "^1.0.0",