Modernize Debian in CI

[targos]

Our Debian hosts are not in a very good shape:

• 2 x64 hosts with Debian 8 (EoL, offline for outdated Java)
• 2 x64 hosts with Debian 9 (EoL, offline for outdated Java)
• 2 x64 hosts and 3 armv7l containers with Debian 10 (EoL in 9 months, GCC 10 not available)

https://endoflife.date/debian

[targos]

My suggestions:

• Repurpose Debian 8 x64 to Debian 11
• Repurpose Debian 9 x64 to Debian 12
• Keep Debian 10 x64 for now, especially since it's one of the Docker distributions for Node.js 20.
• Skip Debian 10 for testing Node.js 21 and later

I don't know what to do about the container setup.

[richardlau]

I don't know what to do about the container setup.

We stopped testing on Debian 10 armv7l for Node.js 20 due to the available version of libstc++ (#3274, rvagg/rpi-newer-crosstools#2). At least for armv7l I'd be okay moving the Debian 10 container to Debian 11.