chore(fastify starter): allow v5 (#6975)

Author: wmertens

starters/adapters/fastify/src/plugins/fastify-qwik.ts

@@ -39,4 +39,4 @@ const qwikPlugin: FastifyPluginAsync<FastifyQwikOptions> = async (
   });
 };
 
-export default fastifyPlugin(qwikPlugin, { fastify: "4.x" });
+export default fastifyPlugin(qwikPlugin, { fastify: ">=4.0.0 <6.0.0" });