v2.9.12

There is an improper error handling in previous versions, see CVE 2025-54571. This release includes a fix for it.

Full list of changes:

• fix: Improper error handling
  [PR from private repo - @orangetw, @pgajdos, @ylavic, @theseion, @fzipi, @airween
  fixed CVE-2025-54571]
• fix: mod_security2's regression tests [Issue #3425 - @airween]
• fix: remove unused condition from msc_status_engine.c [Issue #3412 - @airween]
• fix: remove unwanted '\0' string terminator from argument's value [Issue #3411 - @airween]