Introduce Debian 11 compatibility
Based on CIS_Debian_Linux_11_Benchmark_v1.0.0
After review, here are the notable changes :
- Harden /var/log more (noexec,nodev,nosuid)
- Harden /var/log/audit more (noexec,nodev,nosuid)
- Harden /home more (nosuid)
- Disable cramfs
- Fix 5.3.4_acc_pam_sha512.sh
- Deprecate Debian 9 and remove useless docker images
NB : more audit log rules have been introduced and will be inserted in the checks later
Fix#158
Shellcheck recommands to replace sed by shell expansions in 'simple' cases.
However, the replacement here is likely to lead to erros, so we disable this rule.
Moreover, it does'nt really add readability.
