Bump dotenv from 10.0.0 to 16.0.3

Bumps [dotenv](https://github.com/motdotla/dotenv) from 10.0.0 to 16.0.3.
- [Release notes](https://github.com/motdotla/dotenv/releases)
- [Changelog](https://github.com/motdotla/dotenv/blob/master/CHANGELOG.md)
- [Commits](motdotla/dotenv@v10.0.0...v16.0.3)

---
updated-dependencies:
- dependency-name: dotenv
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -16,7 +16,7 @@
     "chalk": "^4.1.1",
     "color-string": "^1.5.5",
     "discord.js": "^12.5.3",
-    "dotenv": "^10.0.0",
+    "dotenv": "^16.0.3",
     "humanize-duration": "^3.27.0",
     "mongoose": "^5.13.0",
     "mongoose-sequence": "^5.3.1",