[gimp/wip/Jehan/CI-test-caching] Adding a cache key to the Win32 cache.

[Jehan <jehanp src gnome org>]

commit 5272617cd3e37406e900130e3e198b0ec98ee955
Author: Jehan <jehan girinstud io>
Date:   Sat Jan 4 12:32:45 2020 +0100

    Adding a cache key to the Win32 cache.
    
    Still not working. I don't get why. More testiiiiing!!!

 .gitlab-ci.yml | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index fc81020f1d..146893a267 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -188,6 +188,7 @@ deps-win64:
     XDG_CACHE_HOME: "$CI_PROJECT_DIR/.cache/"
     XDG_DATA_HOME:  "$CI_PROJECT_DIR/.local/share/"
   cache:
+    key: "$CI_COMMIT_REF_SLUG-dnf"
     paths:
     - .cache/crossroad/
     - dnf_cache
@@ -252,6 +253,7 @@ gimp-win64:
     XDG_CACHE_HOME: "$CI_PROJECT_DIR/.cache/"
     XDG_DATA_HOME:  "$CI_PROJECT_DIR/.local/share/"
   cache:
+    key: "$CI_COMMIT_REF_SLUG-dnf"
     paths:
     - .cache/crossroad/
     - dnf_cache
@@ -313,6 +315,7 @@ deps-win32:
     XDG_CACHE_HOME: "$CI_PROJECT_DIR/.cache/"
     XDG_DATA_HOME:  "$CI_PROJECT_DIR/.local/share/"
   cache:
+    key: "$CI_COMMIT_REF_SLUG-dnf"
     paths:
     - .cache/crossroad/
     - dnf_cache
@@ -374,6 +377,7 @@ gimp-win32:
     XDG_CACHE_HOME: "$CI_PROJECT_DIR/.cache/"
     XDG_DATA_HOME:  "$CI_PROJECT_DIR/.local/share/"
   cache:
+    key: "$CI_COMMIT_REF_SLUG-dnf"
     paths:
     - .cache/crossroad/
     - dnf_cache