Prefer `archdetect` in our scripts, also make EESSI compatible with archspec 0.2.3+

[ocaisa]

[eessi-bot[bot]]

Instance eessi-bot-mc-aws is configured to build:

• arch x86_64/generic for repo eessi-hpc.org-2023.06-compat
• arch x86_64/generic for repo eessi-hpc.org-2023.06-software
• arch x86_64/generic for repo eessi.io-2023.06-compat
• arch x86_64/generic for repo eessi.io-2023.06-software
• arch x86_64/intel/haswell for repo eessi-hpc.org-2023.06-compat
• arch x86_64/intel/haswell for repo eessi-hpc.org-2023.06-software
• arch x86_64/intel/haswell for repo eessi.io-2023.06-compat
• arch x86_64/intel/haswell for repo eessi.io-2023.06-software
• arch x86_64/intel/skylake_avx512 for repo eessi-hpc.org-2023.06-compat
• arch x86_64/intel/skylake_avx512 for repo eessi-hpc.org-2023.06-software
• arch x86_64/intel/skylake_avx512 for repo eessi.io-2023.06-compat
• arch x86_64/intel/skylake_avx512 for repo eessi.io-2023.06-software
• arch x86_64/amd/zen2 for repo eessi-hpc.org-2023.06-compat
• arch x86_64/amd/zen2 for repo eessi-hpc.org-2023.06-software
• arch x86_64/amd/zen2 for repo eessi.io-2023.06-compat
• arch x86_64/amd/zen2 for repo eessi.io-2023.06-software
• arch x86_64/amd/zen3 for repo eessi-hpc.org-2023.06-compat
• arch x86_64/amd/zen3 for repo eessi-hpc.org-2023.06-software
• arch x86_64/amd/zen3 for repo eessi.io-2023.06-compat
• arch x86_64/amd/zen3 for repo eessi.io-2023.06-software
• arch aarch64/generic for repo eessi-hpc.org-2023.06-compat
• arch aarch64/generic for repo eessi-hpc.org-2023.06-software
• arch aarch64/generic for repo eessi.io-2023.06-compat
• arch aarch64/generic for repo eessi.io-2023.06-software
• arch aarch64/neoverse_n1 for repo eessi-hpc.org-2023.06-compat
• arch aarch64/neoverse_n1 for repo eessi-hpc.org-2023.06-software
• arch aarch64/neoverse_n1 for repo eessi.io-2023.06-compat
• arch aarch64/neoverse_n1 for repo eessi.io-2023.06-software
• arch aarch64/neoverse_v1 for repo eessi-hpc.org-2023.06-compat
• arch aarch64/neoverse_v1 for repo eessi-hpc.org-2023.06-software
• arch aarch64/neoverse_v1 for repo eessi.io-2023.06-compat
• arch aarch64/neoverse_v1 for repo eessi.io-2023.06-software

[ocaisa]

This is still missing the most important part, the update to https://github.com/EESSI/software-layer/blob/2023.06-software.eessi.io/init/eessi_software_subdir_for_host.py

[ocaisa]

Groan, this is very out-of-sync now, I might just split it into two new PRs