fix(deps): update nostr-websocket-utils to 0.3.16, fixes CJS module resolution

Pulls the fix for "Cannot find module" when installed via Node-RED palette.
nostr-websocket-utils 0.3.16 adds {"type":"commonjs"} in dist/cjs/ so
Node.js correctly treats CJS build files as CommonJS.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: vveerrgg

package.json

@@ -1,6 +1,6 @@
 {
     "name": "node-red-contrib-nostr",
-    "version": "0.1.2",
+    "version": "0.1.3",
     "description": "Node-RED nodes for seamless Nostr protocol integration. Features robust WebSocket handling, event filtering, and NPUB-based routing. Built with TypeScript for type safety and extensive testing. Perfect for Nostr automation flows.",
     "author": "vveerrgg",
     "type": "commonjs",