[gnome-photos/wip/rishi/ci-submodule-recursive] CI: Update submodules recursively like the Autotools & Meson builds

[Debarshi Ray <debarshir src gnome org>]

commit b4c44ebbdec556a9b8fa40f9d630b1c4fdd3c22a
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Sep 28 12:24:07 2018 +0200

    CI: Update submodules recursively like the Autotools & Meson builds

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5020e261..540fe740 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ stages:
 
 variables:
     BUNDLE: "org.gnome.Photos.Devel.flatpak"
-    GIT_SUBMODULE_STRATEGY: normal
+    GIT_SUBMODULE_STRATEGY: recursive
 
 flatpak:
     image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master