fix(deps): update dependency livekit-client to v2.15.15

Author: renovate[bot]

package.json

@@ -18,7 +18,7 @@
     "@livekit/components-styles": "1.1.6",
     "@livekit/krisp-noise-filter": "0.3.4",
     "@livekit/track-processors": "^0.6.0",
-    "livekit-client": "2.15.13",
+    "livekit-client": "2.15.15",
     "livekit-server-sdk": "2.14.0",
     "next": "15.2.4",
     "react": "18.3.1",