[libsoup] ci: Add osuosl tag because those runners have IPv6

[Xavier Claessens <xclaesse src gnome org>]

commit 8bb43d22ba8cfe19d4825169994717b0aa15d457
Author: Xavier Claessens <xavier claessens collabora com>
Date:   Mon Dec 17 11:09:51 2018 -0500

    ci: Add osuosl tag because those runners have IPv6

 .gitlab-ci.yml | 8 ++++++++
 1 file changed, 8 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 16190aa4..85a64aa9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,6 +1,13 @@
 image: registry.gitlab.gnome.org/gnome/libsoup/master:v1
 
+.build:
+  tags:
+    # We need runners supporting IPv6:
+    # https://gitlab.gnome.org/Infrastructure/GitLab/issues/313
+    - osuosl
+
 fedora-autotools-x86_64:
+  extends: .build
   script:
     - mkdir -p _build
     - cd _build
@@ -14,6 +21,7 @@ fedora-autotools-x86_64:
     when: on_failure
 
 fedora-meson-x86_64:
+  extends: .build
   script:
     - meson _build
     - ninja -C _build