Bump core-js from 3.6.4 to 3.6.5

Bumps [core-js](https://github.com/zloirock/core-js) from 3.6.4 to 3.6.5.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](zloirock/core-js@v3.6.4...v3.6.5)

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

Author: dependabot-preview[bot]

js/notifications.js

@@ -15,7 +15,7 @@
 	"dependencies": {
 		"@nextcloud/axios": "^1.3.2",
 		"@nextcloud/moment": "^1.1.1",
-		"core-js": "^3.6.4",
+		"core-js": "^3.6.5",
 		"escape-html": "^1.0.3",
 		"regenerator-runtime": "^0.13.5",
 		"vue": "^2.6.11"