[gtk/ci-jobs: 9/19] ci: Disable ccache

[Emmanuele Bassi <ebassi src gnome org>]

commit 74b5bb12fb9be2041aa278ac4c0f3949ed561537
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Wed Jan 29 11:45:33 2020 +0100

    ci: Disable ccache

 .gitlab-ci.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 824a6ad4ba..e9e2fd5131 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,7 +16,8 @@ stages:
 variables:
   COMMON_MESON_FLAGS: "--fatal-meson-warnings --werror"
   MESON_TEST_TIMEOUT_MULTIPLIER: 2
-  G_MESSAGES_DEBUG: all
+  G_MESSAGES_DEBUG: "all"
+  CCACHE_DISABLE: "true"
 
 fedora-x86_64:
   image: registry.gitlab.gnome.org/gnome/gtk/fedora:v11