Investigate NODE-4429 - 4.8.0 Regression, "connection.close" hangs for 30s when connection errored

NODE-4429 Description

What problem are you facing?

Since mongodb(nodejs) 4.8.0 running `await connection.close()` after the connection had errored (with `MongoNetworkError: connection 1 to 127.0.0.1:38111 closed`), it hangs for 30 seconds

This problem goes away when reverting to mongodb 4.7.3

What driver and relevant dependency versions are you using?

mongodb 4.8.0

Steps to reproduce?

• have a running mongodb 5.0.8 (or later patch version) instance
• connect with a MongoClient connection
• execute command `await con.db('admin').command({ shutdown: 1, force: true, timeoutSecs: 1 })`
• try running `await connection.close()`
• observe it hanging for 30 seconds