[pygobject/pygobject-3-34] CI: use the "flatpak" tag for jobs using flatpak

[Christoph Reiter <creiter src gnome org>]

commit 2b1c323d73aa7ac7baab77b89149cce1432688cb
Author: Christoph Reiter <reiter christoph gmail com>
Date:   Fri Feb 21 18:51:03 2020 +0100

    CI: use the "flatpak" tag for jobs using flatpak

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c819e98f..af240626 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -115,5 +115,7 @@ gnome-master:
   allow_failure: true
   stage: build_and_test
   image: registry.gitlab.gnome.org/gnome/gnome-runtime-images/gnome:master
+  tags:
+    - flatpak
   script:
     - xvfb-run -a flatpak run --filesystem=host --share=network --socket=x11 --command=bash 
org.gnome.Sdk//master -x .gitlab-ci/test-flatpak.sh