Bump core-js from 3.14.0 to 3.15.2

Bumps [core-js](https://github.com/zloirock/core-js/tree/HEAD/packages/core-js) from 3.14.0 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-lock.json

@@ -4523,9 +4523,9 @@
       }
     },
     "core-js": {
-      "version": "3.14.0",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.14.0.tgz",
-      "integrity": "sha512-3s+ed8er9ahK+zJpp9ZtuVcDoFzHNiZsPbNAAE4KXgrRHbjSqqNN6xGSXq6bq7TZIbKj4NLrLb6bJ5i+vSVjHA=="
+      "version": "3.15.2",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.15.2.tgz",
+      "integrity": "sha512-tKs41J7NJVuaya8DxIOCnl8QuPHx5/ZVbFo1oKgVl1qHFBBrDctzQGtuLjPpRdNTWmKPH6oEvgN/MUID+l485Q=="
     },
     "core-js-compat": {
       "version": "3.15.2",

package.json

@@ -67,7 +67,7 @@
     "blurhash": "^1.1.3",
     "classlist.js": "https://github.com/eligrey/classList.js/archive/1.2.20180112.tar.gz",
     "classnames": "^2.3.1",
-    "core-js": "^3.14.0",
+    "core-js": "^3.15.2",
     "date-fns": "^2.22.1",
     "epubjs": "^0.3.85",
     "fast-text-encoding": "^1.0.3",