fixes redis#2524 delaying graceful exit while pingInterval is set (redis#2525)

* fixes redis#2524

* `clearTimeout` in `disconnect` too

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Co-authored-by: Leibale Eidelman <me@leibale.com>

Author: jorenvandeweyer

packages/client/lib/client/index.ts

@@ -683,6 +683,7 @@ export default class RedisClient<
 
     QUIT(): Promise<string> {
         return this.#socket.quit(async () => {
+            if (this.#pingTimer) clearTimeout(this.#pingTimer);
             const quitPromise = this.#queue.addCommand<string>(['QUIT']);
             this.#tick();
             const [reply] = await Promise.all([
@@ -804,6 +805,7 @@ export default class RedisClient<
     }
 
     async disconnect(): Promise<void> {
+        if (this.#pingTimer) clearTimeout(this.#pingTimer);
         this.#queue.flushAll(new DisconnectsClientError());
         this.#socket.disconnect();
         await this.#destroyIsolationPool();