Make connection errors catchable

[jespertheend]

Sometimes our database server restarts, which causes all clients using get disconnected. We have a whole bunch of servers which all talk to the same database, so I have to manually restart all of these to get them to reconnect again.

Making a MongoClient automatically reconnect closed connections would be nice, but would probably require a lot of work and might be out of scope for this project.

Instead, I'm fine with handling this myself, but the problem is that may calls result in an unhandled rejection being thrown that you can't easily catch.

Specifically Protocol.ts receive() seems to be generating a bunch of unhandled rejections. Sometimes I'm getting "Invalid response header". Other times this.#reader.readFull rejects with "Connection reset by peer".

I can reliably reproduce this by simply restarting mongod:
brew services restart mongodb-community