Bump xo from 0.46.4 to 0.51.0

Bumps [xo](https://github.com/xojs/xo) from 0.46.4 to 0.51.0.
- [Release notes](https://github.com/xojs/xo/releases)
- [Commits](xojs/xo@v0.46.4...v0.51.0)

---
updated-dependencies:
- dependency-name: xo
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -32,7 +32,7 @@
 		"ava": "^3.15.0",
 		"mongodb-memory-server": "^7.2.0",
 		"mongoose": "^6.0.4",
-		"xo": "^0.46.3"
+		"xo": "^0.51.0"
 	},
 	"xo": {
 		"rules": {