Bump @gltf-transform/extensions from 3.10.1 to 4.0.0 (#65)

Bumps [@gltf-transform/extensions](https://github.com/donmccurdy/glTF-Transform) from 3.10.1 to 4.0.0.
- [Changelog](https://github.com/donmccurdy/glTF-Transform/blob/main/CHANGELOG.md)
- [Commits](https://github.com/donmccurdy/glTF-Transform/compare/v3.10.1...v4.0.0)

---
updated-dependencies:
- dependency-name: "@gltf-transform/extensions"
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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package.json

@@ -16,7 +16,7 @@
   },
   "dependencies": {
     "@gltf-transform/core": "^3.10.1",
-    "@gltf-transform/extensions": "^3.10.1",
+    "@gltf-transform/extensions": "^4.0.0",
     "@gltf-transform/functions": "^3.10.1",
     "@google/model-viewer": "^3.5.0",
     "@jamescoyle/vue-icon": "^0.1.2",