Bump @babel/polyfill from 7.4.3 to 7.4.4

Bumps [@babel/polyfill](https://github.com/babel/babel) from 7.4.3 to 7.4.4.
- [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/v7.4.3...v7.4.4)

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

package-lock.json

@@ -1253,9 +1253,9 @@
       }
     },
     "@babel/polyfill": {
-      "version": "7.4.3",
-      "resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.4.3.tgz",
-      "integrity": "sha512-rkv8WIvJshA5Ev8iNMGgz5WZkRtgtiPexiT7w5qevGTuT7ZBfM3de9ox1y9JR5/OXb/sWGBbWlHNa7vQKqku3Q==",
+      "version": "7.4.4",
+      "resolved": "https://registry.npmjs.org/@babel/polyfill/-/polyfill-7.4.4.tgz",
+      "integrity": "sha512-WlthFLfhQQhh+A2Gn5NSFl0Huxz36x86Jn+E9OW7ibK8edKPq+KLy4apM1yDpQ8kJOVi1OVjpP4vSDLdrI04dg==",
       "requires": {
         "core-js": "^2.6.5",
         "regenerator-runtime": "^0.13.2"

package.json

@@ -25,7 +25,7 @@
 	"bugs": "https://github.com/nextcloud/tasks/issues",
 	"contributors": [],
 	"dependencies": {
-		"@babel/polyfill": "^7.4.3",
+		"@babel/polyfill": "^7.4.4",
 		"axios": "^0.18.0",
 		"cdav-library": "github:nextcloud/cdav-library#3ec4dae028f086fed3e1baa49ec6f6dd04c95043",
 		"ical.js": "~1.3.0",