fix(deps): update dependency @mapbox/mapbox-gl-style-spec to v14.15.0

Author: renovate[bot]

package.json

@@ -43,7 +43,7 @@
   "homepage": "https://github.com/IGNF/geopf-extensions-openlayers#readme",
   "dependencies": {
     "@gouvfr/dsfr": "^1.11.0",
-    "@mapbox/mapbox-gl-style-spec": "14.8.0",
+    "@mapbox/mapbox-gl-style-spec": "14.15.0",
     "@xmldom/xmldom": "^0.9.0",
     "ajv": "^8.17.1",
     "ajv-formats": "^3.0.1",