Turning on pingInterval on a pubsub channel results in an error

[mdouglass]

If you turn on pingInterval on a client using pubsub features, the client errors out and returns Error: Cannot send commands in PubSub mode. This is incorrect because PING is one of the allowed commands on a PUBSUB channel.

Environment:

• Node.js Version: v18.12.0
• Redis Server Version: 6.2.7
• Node Redis Version: 4.5.1
• Platform: macOS 13.0.1 (22A400)

[leibale]

Duplicate of #2345
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