[libgda] CI: enable experimental for documentation deploy

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 87b0c60bcf663a442c2fd54c1dc5994db77e5d96
Author: Daniel Espinosa <esodan gmail com>
Date:   Thu Apr 11 15:06:37 2019 -0500

    CI: enable experimental for documentation deploy

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 14cb577c4..fea678f89 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -119,7 +119,7 @@ documentation_build:
 pages:
   stage: deploy_doc
   script:
-  - meson -Denable-gtk-doc=true _build
+  - meson _build --prefix=/usr -Denable-gtk-doc=true -Denable-experimental=true -Denable-tools=true 
-Denable-ldap=true
   - cd _build
   - ninja
   - ninja install