[tracker/wip/carlosg/more-tests] ci: Disable docs building in fedora@aarch64 build job

[Carlos Garnacho <carlosg src gnome org>]

commit fb7de68693e80ad6b975094c68e88962a48e4e73
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Mar 11 13:48:00 2022 +0100

    ci: Disable docs building in fedora@aarch64 build job
    
    For some reason, the runners seem to get stuck there often. Plus,
    we don't need building docs here (docs/website rely on faster x86_64
    runners).

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 31fd39fea..c04188030 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -251,6 +251,8 @@ build-fedora@aarch64:
   needs:
     - build-fedora-container@aarch64
   allow_failure: true
+  variables:
+    NO_DOCS: "true"
   <<: *build
 
 build-ubuntu-rolling@x86_64: