Bump xo from 0.25.1 to 0.25.3

Bumps [xo](https://github.com/xojs/xo) from 0.25.1 to 0.25.3.
- [Release notes](https://github.com/xojs/xo/releases)
- [Commits](xojs/xo@v0.25.1...v0.25.3)

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

package.json

@@ -45,7 +45,7 @@
   },
   "devDependencies": {
     "coveralls": "^3.0.6",
-    "xo": "^0.25.1",
+    "xo": "^0.25.3",
     "istanbul": "^1.1.0-alpha.1",
     "mocha": "^6.2.0"
   },