Rename mux->mu and update amqp

Add cluster support via Resolver

Consumer: close gracefully

fix: consumer close before run

Signed-off-by: Ruslan Bayandinov <wazsone@ya.ru>

update `amqp091-go` from `v1.7.0` to `v1.9.0`

docs and multiple exchanges

Return an error instead of crashing when we cannot retry consumer

Remove tracef from logger interface

fix: fatal default log

fix ConfirmSafe race condition

add option to enable publisher confirmations

this makes it easier to use `PublishWithDeferredConfirmWithContext`
without generating a custom handler that does nothing.

Add an additional example for this that also shows how to use
PublishWithDeferredConfirmWithContext.

Closes: https://github.com/wagslane/go-rabbitmq/issues/116

readme

maxint

default prefetch

recovery from channel failure

close publisher properly to prevent resource leaks

Bump github.com/rabbitmq/amqp091-go to v1.7.0

update: Add manual action to consumer handler & expose function for Publishing with deferred confirmation