[tracker-miners/tracker-miners-2.3] ci: Fix tests with Fedora 31 container image

[Sam Thursfield <sthursfield src gnome org>]

commit 270dafa5cde5622c63b93f8a4d24c89f40d3d331
Author: Sam Thursfield <sam afuera me uk>
Date:   Wed Dec 11 15:09:18 2019 +0100

    ci: Fix tests with Fedora 31 container image

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e3f851747..adeada6f8 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,7 +27,7 @@ test-fedora-latest:
       # screenful of junk each time unless we strip these.
       unset $(env|grep -o '^CI_[^=]*')
 
-      su tracker -c 'cd build; dbus-run-session -- env LANG=en_US.UTF8 meson test --suite tracker-miners 
--print-errorlogs'
+      su tracker -c 'cd build; dbus-run-session -- env LANG=C.UTF8 LC_ALL=C.UTF8 meson test --suite 
tracker-miners --print-errorlogs'
 
   artifacts:
     when: always