support ampq 3.0 and amqp_client 3.9.x

[leductam]

Starting from amqp-3.0, :lager will no longer be required then removes :lager configuration.
If still use amqp 1.x/2.x already had :lager in them applications configs then it's fine to remove :lager from extra_applications: of ex_rabbit_pool mix.exs.

[Efesto]

credentials_obfuscation, introduced in this PR, is not supported on OTP 21 anymore

[leductam]

credentials_obfuscation, introduced in this PR, is not supported on OTP 21 anymore

In case you have to use OTP 21 then should be use the appropriate amqp version. My PR just for the next releases of amqp/amqp_client and of course that it just an option.

[Efesto]

In case you have to use OTP 21 then should be use the appropriate amqp version. My PR just for the next releases of amqp/amqp_client and of course that it just an option.

Yop, I wanted to point out that the integration pipeline is red for that reason but I'm not sure what would be the best way to proceed, probably by updating mix.lock by locking the library versions for amqp 1.2 as it is on master branch

[Efesto]

Any chance for this to get merged?