Doc: Dev: Add text for glab installation.

doc/dev/documentation.org

@@ -1069,6 +1069,12 @@ gitlab-ci.
   sudo python3 -m pip install pyinstaller
 #+end_src
 
+In addition, you must install Glab[fn:glab] to allow the runner to
+proceed with the publication.
+
+[fn:glab] The Gitlab cli releases page:
+https://gitlab.com/gitlab-org/cli/-/releases
+
 *** Windows (Wine) {{{windows}}}
 
 The ci-runner environment for Wine need at least wine version 8, let