Bump howler from 2.2.3 to 2.2.4

Bumps [howler](https://github.com/goldfire/howler.js) from 2.2.3 to 2.2.4.
- [Release notes](https://github.com/goldfire/howler.js/releases)
- [Changelog](https://github.com/goldfire/howler.js/blob/master/CHANGELOG.md)
- [Commits](goldfire/howler.js@v2.2.3...v2.2.4)

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

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

package.json

@@ -29,7 +29,7 @@
         "core-js": "^3.12.1",
         "eventemitter3": "^4.0.7",
         "express": "^4.17.1",
-        "howler": "^2.2.3",
+        "howler": "^2.2.4",
         "intersects": "^2.7.2",
         "joypad.js": "^2.2.5",
         "keycon": "^1.1.2",