[calls] ci: Run relaxed appstream validation during tests

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit 43fb8504e8a6368baa5ca91a6f7e39c2238f39ee
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Tue Oct 19 12:14:23 2021 +0200

    ci: Run relaxed appstream validation during tests
    
    If appstream-util is installed the tests will run `appstream validate-relax` on
    the metainfo file.

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9090e165..87bea8e2 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -28,7 +28,7 @@ build:native:
     - export DEBIAN_FRONTEND=noninteractive
     - apt-get -y update
     - apt-get -y install eatmydata
-    - eatmydata apt-get -y install lcov
+    - eatmydata apt-get -y install lcov ca-certificates appstream-util
     - '[ "${WANT_BUILD_DEPS}" != "true" ] || eatmydata apt-get -y build-dep .'
     - ulimit -c unlimited
   script: