The systemd package got a security update in Debian bookworm, which
changed the systemd-coredump kernel sysctl core_pattern value (by
appending « %d»). This is part of the fix for CVE-2025-4598.
This has caused ngcp-system-tests to fail to match the new pattern,
so we need to adapt it for all currently support Debian bookworm
releases.
Ref: https://security-tracker.debian.org/tracker/CVE-2025-4598
Ref: 2eb46dce07
Change-Id: I531f197e47094321d688d425fb7f577b42fd7391
(cherry picked from commit 2abaac7e3c)
(cherry picked from commit 228c52b602)