Bump axios and youtube-search (#41)

Bumps [axios](https://github.com/axios/axios) to 0.21.4 and updates ancestor dependency [youtube-search](https://github.com/MaxGfeller/youtube-search). These dependencies need to be updated together.


Updates `axios` from 0.18.1 to 0.21.4
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v0.21.4/CHANGELOG.md)
- [Commits](axios/axios@v0.18.1...v0.21.4)

Updates `youtube-search` from 1.1.4 to 1.1.6
- [Release notes](https://github.com/MaxGfeller/youtube-search/releases)
- [Commits](MaxGfeller/youtube-search@v1.1.4...v1.1.6)

---
updated-dependencies:
- dependency-name: axios
  dependency-type: indirect
- dependency-name: youtube-search
  dependency-type: direct:production
...

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

package.json

@@ -63,7 +63,7 @@
     "sqlite3": "^4.2.0",
     "superagent": "^5.2.2",
     "watson-developer-cloud": "^3.8.0",
-    "youtube-search": "^1.1.4",
+    "youtube-search": "^1.1.6",
     "ytdl-core-discord": "^1.2.0"
   }
 }