Bump h3 from 1.13.0 to 1.15.5 in /packages/theme

Bumps [h3](https://github.com/h3js/h3) from 1.13.0 to 1.15.5.
- [Release notes](https://github.com/h3js/h3/releases)
- [Changelog](https://github.com/h3js/h3/blob/v1.15.5/CHANGELOG.md)
- [Commits](h3js/h3@v1.13.0...v1.15.5)

---
updated-dependencies:
- dependency-name: h3
  dependency-version: 1.15.5
  dependency-type: direct:production
...

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

Author: dependabot[bot]

packages/theme/package.json

@@ -46,7 +46,7 @@
     "@shopify/theme-check-node": "3.23.0",
     "@shopify/theme-language-server-node": "2.20.0",
     "chokidar": "3.6.0",
-    "h3": "1.13.0",
+    "h3": "1.15.5",
     "yaml": "2.7.0"
   },
   "devDependencies": {