Bump xo from 0.28.3 to 0.29.1 (#70)

Bumps [xo](https://github.com/xojs/xo) from 0.28.3 to 0.29.1.
- [Release notes](https://github.com/xojs/xo/releases)
- [Commits](xojs/xo@v0.28.3...v0.29.1)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -37,7 +37,7 @@
     "postcss-scss": "^2.0.0"
   },
   "devDependencies": {
-    "xo": "^0.28.3"
+    "xo": "^0.29.1"
   },
   "files": [
     "cli.js",