[gnome-clocks/bilelmoussaoui/ci-fix] CI: attempt to fix the pipeline

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 40af92fd2fced34aacff660e95b9dbd910888bff
Author: Bilal Elmoussaoui <bil elmoussaoui gmail com>
Date:   Sun Feb 23 19:01:41 2020 +0000

    CI: attempt to fix the pipeline

 .gitlab-ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e100423..502d44b 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,10 +11,10 @@ flatpak:
         FLATPAK_MODULE: "gnome-clocks"
         RUNTIME_REPO: "https://nightly.gnome.org/gnome-nightly.flatpakrepo";
         APP_ID: "org.gnome.clocksDevel"
-    extends: .flatpak
+    extends: '.flatpak'
 
 lint:
-  image: valalang/lint:latest
-  stage: .pre
+  image: 'valalang/lint:latest'
+  stage: '.pre'
   script:
     - io.elementary.vala-lint src