Bump pixi.js from 8.3.4 to 8.4.0

Bumps [pixi.js](https://github.com/pixijs/pixijs) from 8.3.4 to 8.4.0.
- [Release notes](https://github.com/pixijs/pixijs/releases)
- [Commits](pixijs/pixijs@v8.3.4...v8.4.0)

---
updated-dependencies:
- dependency-name: pixi.js
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -59,7 +59,7 @@
     "mdast-util-to-hast": "^13.2.0",
     "mdast-util-to-string": "^4.0.0",
     "micromorph": "^0.4.5",
-    "pixi.js": "^8.3.4",
+    "pixi.js": "^8.4.0",
     "preact": "^10.24.0",
     "preact-render-to-string": "^6.5.11",
     "pretty-bytes": "^6.1.1",