[gnome-build-meta/jjardon/bst-1_2_4] .gitlab-ci.yml: Update to buildstream 1.2.4

[Javier Jardón Cabezas <jjardon src gnome org>]

commit 31ce67b47c34f5d49b5eb29fb77c724c7b02b6de
Author: Javier Jardón <jjardon gnome org>
Date:   Fri Feb 15 09:05:53 2019 +0000

    .gitlab-ci.yml: Update to buildstream 1.2.4

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a9c1fdec..50ff4db2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ variables:
   XDG_CACHE_HOME: "${CI_PROJECT_DIR}/cache"
   GET_SOURCES_ATTEMPTS: 3
   BST: "bst --config build.conf --log-file logs/build.log --colors"
-  BST_SHA: '1.2.3-0-g10abe77fe8d77385d86f225b503d9185f4ef7f3a'
+  BST_SHA: '1.2.4-0-gc270d09a5bb473a3a7f2f7243440a306b792bc89'
   BST_EXTERNAL_SHA: '0.8.0-0-g762ea216b751bf89ac15350e1cb98542963bbf33'
   FLATPAK_BRANCH: master