metadata/stabilization-groups: add group for cl-ppcre

```
[ebuild  N    ~] dev-lisp/cl-ppcre-2.1.2
[ebuild  N     ] dev-lisp/cl-ppcre-unicode-2.1.0-r1

!!! Multiple package instances within a single package slot have been pulled
!!! into the dependency graph, resulting in a slot conflict:

dev-lisp/cl-ppcre:0

  (dev-lisp/cl-ppcre-2.1.2:0/0::gentoo, ebuild scheduled for merge) USE="" pulled in by
    =dev-lisp/cl-ppcre-2.1.2 (Argument)

  (dev-lisp/cl-ppcre-2.1.0-r1:0/0::gentoo, ebuild scheduled for merge) USE="" pulled in by
    ~dev-lisp/cl-ppcre-2.1.0 required by (dev-lisp/cl-ppcre-unicode-2.1.0-r1:0/0::gentoo, ebuild scheduled for merge) USE=""
    ^                  ^^^^^
```

These packages form a cycle broken via PDEPEND, and require `~pkg-${PV}`
so must stay in sync. Filing individual bugs simply leads to permanent
blocking.

Bug: https://bugs.gentoo.org/958680
Bug: https://bugs.gentoo.org/958681
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
This commit is contained in:
Eli Schwartz 2025-12-07 22:01:18 -05:00
parent c4f8e62b71
commit b689011271
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@ -0,0 +1,2 @@
dev-lisp/cl-ppcre
dev-lisp/cl-ppcre-unicode