Doc: Python 3.12 with conda rabbitmq-server <= 3.8.14 dependency fails, better document rabbitmq dependency

[agoscinski]

Describe the current issue

On Ubuntu 22.04 when pinning the dependency rabbitmq-server <=3.8.14 in conda, it installs 3.6.15 (because of some other dependency conflicts with erlang and openssl it goes that far back) which then results in the error message

alexgo@fw ~/c/aiida-core (main)> rabbitmqctl --version                (aiida-core) 
Error! Failed to load module 'rabbit_control_main' because it requires a more recent Erlang/OTP version or its .beam file was corrupted.
(You are running Erlang/OTP 27.)

Runtime terminating during boot ({undef,[{init,start_it,1,[]},{init,start_em,1,[]},{init,do_boot,3,[]}]})

for any rabbitmq command.

Describe the solution you'd like

My suggestion is to make clear in the documentation that downgrading does not work for python 3.12
https://aiida.readthedocs.io/projects/aiida-core/en/v2.6.2/installation/troubleshooting.html#installation-troubleshooting
And also link the troubleshooting in the installation https://aiida.readthedocs.io/projects/aiida-core/en/v2.6.2/installation/guide_complete.html#rabbitmq as there is no comment about the rabbitmq version.