[gegl] gitlab-ci: Restrict ccache size

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

commit f6d22e0cd5fdfc1a48834218f49ac336f897ce0f
Author: Jan Vesely <jano vesely gmail com>
Date:   Wed Apr 29 00:16:29 2020 -0400

    gitlab-ci: Restrict ccache size
    
    babl build dir is ~12Mi at this time, 32 should be enough to account for
    different branches.
    gegl build dir is ~70Mi at this time, 128 should be enough to account
    for different branches.
    Signed-off-by: Jan Vesely <jano vesely gmail com>

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a56981504..aaa1092d8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -46,6 +46,7 @@ build-image:
     - $BABL_DIR
   variables:
     GIT_DEPTH: "5"
+    CCACHE_MAXSIZE: "32Mi"
   before_script:
     - pacman -Syu --noconfirm --needed --cachedir $PACMAN_CACHE git base-devel ccache meson lcms2 
gobject-introspection
     - git clone --depth=$GIT_DEPTH https://gitlab.gnome.org/GNOME/babl.git _babl
@@ -110,6 +111,7 @@ babl-min:
   extends: .gegl-deps
   variables:
     GIT_DEPTH: "15"
+    CCACHE_MAXSIZE: "128Mi"
   script:
    - export XDG_DATA_DIRS="$XDG_DATA_DIRS:$BABL_PREFIX/share:/usr/local/share/:/usr/share/"
    - export PKG_CONFIG_PATH=$BABL_PREFIX/lib/pkgconfig