Update OS used by Arcade pipelines (EOL)

[ilyas1974]

There are a number of EOL operating systems that are still being targeted by arcade pipelines. We need to move these runs to a more current OS

Repo	Branch	EOL OS	Preferred New OS
dotnet/arcade	main	Mariner 2.0	Azure Linux 3.0
dotnet/arcade	release/6.0	CentOS 7	CentOS stream 8
dotnet/arcade	release/8.0	Mariner 2.0	Azure Linux 3.0
dotnet/arcade	release/9.0	Mariner 2.0	Azure Linux 3.0
dotnet-arcade-validation	release/8.0	Debian 10	Debian 12

Release Note Category

• Feature changes/additions
• Bug fixes
• Internal Infrastructure Improvements

Release Note Description

Update Operating Systems running arcade pipelines