[PATCH 5/7] xz: inherit upstream-stable-release-point

[<daniel.turull@ericsson.com>]

From: Daniel Turull <daniel.turull@ericsson.com>

XZ Utils's README documents that an even minor (Y) is a stable series
where the revision (Z) "is incremented when bugs get fixed without adding
any new features". So upgrades within a major.minor are stable point
upgrades per the OE-Core stable release policy (ref-manual, "Stable Point
Release Upgrades").

  https://docs.yoctoproject.org/dev/ref-manual/release-process.html#stable-point-release-upgrades
  https://github.com/tukaani-project/xz/blob/v5.8.3/README#L138

Checked the last two point releases for feature creep:

  5.8.3 (Mar 31 2026): one CVE (CVE-2026-34743, a buffer overflow in
  lzma_index_append), one invalid-memory-access fix, build portability
  fixes for Windows ARM64EC and Hurd, and man page translations. No new
  options or API.
  5.8.2 (Dec 17 2025): build portability fixes for four toolchains, a
  RHEL 9 kernel-bug workaround, and a resource-aware memory-limit default
  tweak that is a bugfix rather than a new feature. No new options or
  API.

Already tracked this way on the OE stable branches, counting only bumps
made since each branch forked from master: kirkstone picked up 5.2.6 and
scarthgap 5.4.7, one bump each.

AI-Generated: Kiro with Claude Opus 5
Signed-off-by: Daniel Turull <daniel.turull@ericsson.com>
---
 meta/recipes-extended/xz/xz_5.8.3.bb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meta/recipes-extended/xz/xz_5.8.3.bb b/meta/recipes-extended/xz/xz_5.8.3.bb
index b76b1726e4..0735696011 100644
--- a/meta/recipes-extended/xz/xz_5.8.3.bb
+++ b/meta/recipes-extended/xz/xz_5.8.3.bb
@@ -34,6 +34,10 @@ SRC_URI[sha256sum] = "3d3a1b973af218114f4f889bbaa2f4c037deaae0c8e815eec381c3d546
 UPSTREAM_CHECK_REGEX = "releases/tag/v(?P<pver>\d+(\.\d+)+)"
 UPSTREAM_CHECK_URI = "https://github.com/tukaani-project/xz/releases/"
 
+# XZ Utils publishes bugfix/security-only micro releases on its stable
+# (even-minor) branches.
+inherit upstream-stable-release-point
+
 CACHED_CONFIGUREVARS += "gl_cv_posix_shell=/bin/sh"
 
 inherit autotools gettext ptest