Debian 12 support: build binaries on glibc 2.35 if possible

[danielefranceschi]

Is your feature request related to a problem? Please describe.

The current linux binaries are built on ubuntu-24 which has GLIBC 2.38; Debian [11,12] users cannot use those binaries.

Describe the solution you'd like

Build linux binaries with ubuntu-20; they will be compatible with any current linux distro.

Describe alternatives you've considered

No response

Additional context

$ ./rabbitmqadmin 
./rabbitmqadmin: /lib/aarch64-linux-gnu/libc.so.6: version `GLIBC_2.38' not found (required by ./rabbitmqadmin)

[michaelklishin]

@danielefranceschi Ubuntu 20.04 runners are deprecated and will be gone by April.

Ubuntu 22.04 ships with 2.35 and Debian 12 ships with 2.36, so using 22.04 should be enough for Debian 12.

I am not willing to spend any more time or resources on Debian 11, we already invest heavily in producing latest RabbitMQ and Erlang packages for Debian and Ubuntu because Debian's standard package repositories are years behind on everything all the time.

[michaelklishin]

Here's evidence that things seems to work perfectly fine on ubuntu-22.04:

• https://github.com/rabbitmq/rabbitmqadmin-ng/actions/runs/13358311975
• https://github.com/michaelklishin/rabbitmq-http-api-rs/actions/runs/13358325331

So, the next release will be produced on glibc 2.35 🤞

@danielefranceschi thank you for bringing this up!

[michaelklishin]

Oh, wait. I now recall why it was important to move to ubuntu-24.04: that's the only option to have access to aarch64-based runners.

So we will have to produce more release artifacts to cover x86-64 Debian 12 but for aarch64, Debian users will have to install rabbitmqadmin from source or package it themselves.