Bump maplibre-gl from 5.13.0 to 5.15.0

Bumps [maplibre-gl](https://github.com/maplibre/maplibre-gl-js) from 5.13.0 to 5.15.0.
- [Release notes](https://github.com/maplibre/maplibre-gl-js/releases)
- [Changelog](https://github.com/maplibre/maplibre-gl-js/blob/main/CHANGELOG.md)
- [Commits](maplibre/maplibre-gl-js@v5.13.0...v5.15.0)

---
updated-dependencies:
- dependency-name: maplibre-gl
  dependency-version: 5.15.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -30,6 +30,6 @@
     "@mapbox/mapbox-gl-language": "^1.0.1",
     "@mapbox/mapbox-gl-rtl-text": "^0.3.0",
     "@openhistoricalmap/maplibre-gl-dates": "^1.3.0",
-    "maplibre-gl": "^5.13.0"
+    "maplibre-gl": "^5.15.0"
   }
 }