[gegl] gitlab-ci: Split gegl build deps to a separate class

[Øyvind "pippin" Kolås <ok src gnome org>]

commit 5e594b88f720c1e7f6c4a5f5e6c620a4b17ed5c3
Author: Jan Vesely <jano vesely gmail com>
Date:   Sat Nov 2 22:29:35 2019 -0400

    gitlab-ci: Split gegl build deps to a separate class
    
    Signed-off-by: Jan Vesely <jano vesely gmail com>

 .gitlab-ci.yml | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6716923ce..0740a3595 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -48,10 +48,7 @@ babl-min:
     - ninja -C _build install
 
 
-.build-gegl:
-  stage: gegl
-  variables:
-    GIT_DEPTH: "15"
+.gegl-deps:
   artifacts:
     paths:
     - _build/meson-logs/testlog.txt
@@ -75,6 +72,12 @@ babl-min:
         sdl2
         suitesparse
         vala
+
+.build-gegl:
+  stage: gegl
+  extends: .gegl-deps
+  variables:
+    GIT_DEPTH: "15"
   script:
    - export XDG_DATA_DIRS="$XDG_DATA_DIRS:$BABL_PREFIX/share:/usr/local/share/:/usr/share/"
    - export PKG_CONFIG_PATH=$BABL_PREFIX/lib/pkgconfig