build(deps): bump hotkeys-js from 3.8.6 to 3.8.7

Bumps [hotkeys-js](https://github.com/jaywcjlove/hotkeys) from 3.8.6 to 3.8.7.
- [Release notes](https://github.com/jaywcjlove/hotkeys/releases)
- [Commits](https://github.com/jaywcjlove/hotkeys/compare/v3.8.6...v3.8.7)

---
updated-dependencies:
- dependency-name: hotkeys-js
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -15,7 +15,7 @@
         "core-js": "^3.14.0",
         "css-loader": "^5.2.6",
         "dompurify": "^2.2.9",
-        "hotkeys-js": "^3.8.6",
+        "hotkeys-js": "^3.8.7",
         "mux.js": "^5.11.0",
         "register-service-worker": "^1.7.1",
         "shaka-player": "3.1.0",