Bump discord.js from 14.20.0 to 14.21.0 (#153)

Bumps [discord.js](https://github.com/discordjs/discord.js/tree/HEAD/packages/discord.js) from 14.20.0 to 14.21.0.
- [Release notes](https://github.com/discordjs/discord.js/releases)
- [Changelog](https://github.com/discordjs/discord.js/blob/14.21.0/packages/discord.js/CHANGELOG.md)
- [Commits](https://github.com/discordjs/discord.js/commits/14.21.0/packages/discord.js)

---
updated-dependencies:
- dependency-name: discord.js
  dependency-version: 14.21.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -5,7 +5,7 @@
   "main": "server.js",
   "dependencies": {
     "@zuzak/owo": "^1.14.1",
-    "discord.js": "^14.20.0",
+    "discord.js": "^14.21.0",
     "dotenv": "^16.5.0",
     "seedrandom": "^3.0.5",
     "sqlite3": "^5.1.6"