chore(deps): bump core-js from 3.15.1 to 3.15.2

Bumps [core-js](https://github.com/zloirock/core-js/tree/HEAD/packages/core-js) from 3.15.1 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-patch
...

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

package.json

@@ -13,7 +13,7 @@
         "azure-devops-extension-api": "^1.158.0",
         "azure-devops-extension-sdk": "^2.0.11",
         "azure-devops-ui": "^2.167.7",
-        "core-js": "^3.15.1",
+        "core-js": "^3.15.2",
         "immer": "^9.0.5",
         "office-ui-fabric-react": "^7.172.2",
         "react": "^17.0.2",