⬆️ Bump sapper from 0.28.10 to 0.29.0

Bumps [sapper](https://github.com/sveltejs/sapper) from 0.28.10 to 0.29.0.
- [Release notes](https://github.com/sveltejs/sapper/releases)
- [Changelog](https://github.com/sveltejs/sapper/blob/master/CHANGELOG.md)
- [Commits](sveltejs/sapper@v0.28.10...v0.29.0)

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

package.json

@@ -67,7 +67,7 @@
     "rollup": "^2.23.1",
     "rollup-plugin-svelte": "^6.0.1",
     "rollup-plugin-terser": "^7.0.0",
-    "sapper": "^0.28.0",
+    "sapper": "^0.29.0",
     "semantic-release": "^17.1.2",
     "semantic-release-gitmoji": "^1.3.4",
     "svelte": "^3.24.1",