chore(deps): update dependency @stylexjs/stylex to v0.16.0

Author: renovate[bot]

package.json

@@ -187,7 +187,7 @@
     "oxlint": "1.14.0",
     "dprint": "0.50.1",
     "@stylexjs/esbuild-plugin": "0.11.1",
-    "@stylexjs/stylex": "0.15.3",
+    "@stylexjs/stylex": "0.16.0",
     "@types/glob": "9.0.0",
     "@types/mocha": "10.0.10",
     "@types/node": "22.18.1",