150/174: gnu: linphone-desktop: Update to 5.2.6.

[guix-commits]

guix_mirror_bot pushed a commit to branch master
in repository guix.

commit 07c7901a310e984169e48ad4677c553279f93ca1
Author: Maxim Cournoyer <ma...@guixotic.coop>
AuthorDate: Mon Sep 29 20:40:54 2025 +0900

    gnu: linphone-desktop: Update to 5.2.6.
    
    * gnu/packages/linphone.scm (linphone-desktop): Update to 5.2.6.
    
    Change-Id: I1d58fa5134aab1f4d00b56d9e3648b180a39a194