npm(deps): bump core-js from 3.10.1 to 3.15.2

Bumps [core-js](https://github.com/zloirock/core-js/tree/HEAD/packages/core-js) from 3.10.1 to 3.15.2.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/commits/v3.15.2/packages/core-js)

---
updated-dependencies:
- dependency-name: core-js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -43,7 +43,7 @@
     "@angular/platform-browser": "^11.1.0",
     "@angular/platform-browser-dynamic": "^11.1.0",
     "@angular/router": "^11.2.14",
-    "core-js": "^3.10.1",
+    "core-js": "^3.15.2",
     "date-fns": "^2.22.1",
     "rxjs": "^6.6.7",
     "tslib": "^2.2.0",