Bump core-js from 3.4.7 to 3.5.0

Bumps [core-js](https://github.com/zloirock/core-js) from 3.4.7 to 3.5.0.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](zloirock/core-js@v3.4.7...v3.5.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package-lock.json

@@ -21,7 +21,7 @@
     "url": "https://github.com/nextcloud/nextcloud-dialogs"
   },
   "dependencies": {
-    "core-js": "3.4.7"
+    "core-js": "3.5.0"
   },
   "devDependencies": {
     "@babel/cli": "7.7.5",