[gupnp] ci: Add tag that we need ipv6

[Jens Georg <jensgeorg src gnome org>]

commit f3687ceb99f9ef1ca2a9b173637c4353f9960462
Author: Jens Georg <mail jensge org>
Date:   Tue Aug 16 11:07:55 2022 +0200

    ci: Add tag that we need ipv6

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9ede0e0..58a8cb2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -126,6 +126,8 @@ build-fedora@x86_64:
       junit: "build/meson-logs/testlog.junit.xml"
 
 test-fedora@x86_64:
+  tags:
+    - ipv6
   extends:
     - .fdo.distribution-image@fedora
     - .gupnp.fedora:36@x86_64