[gjs/ci-use-mozjs-latest] Ensure chroot isolation

[Marco Trevisan <marcotrevi src gnome org>]

commit 3f19f38431c48c95aef15d92103a35608ac661e3
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Wed Nov 4 17:50:47 2020 +0100

    Ensure chroot isolation

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8fe4c4ea..a912d742 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -20,7 +20,7 @@ stages:
     - sed -i '/^mountopt =.*/d' /etc/containers/storage.conf
 
     # Where the real magic happens
-    - buildah bud -f $DOCKERFILE -t "$IMAGE_NAME" $ARGS
+    - buildah bud --isolation=chroot -f $DOCKERFILE -t "$IMAGE_NAME" $ARGS
 
     # Prepare to publish
     - buildah tag "$IMAGE_NAME" "$IMAGE_JOB_NAME"