[gnome-runtime-images] Install Sdk.Debug extensions too

[Jordan Petridis <jpetridis src gnome org>]

commit 853c880a8b7beb86677431c101f38af76037d835
Author: Jordan Petridis <jpetridis gnome org>
Date:   Mon Aug 20 05:31:00 2018 +0300

    Install Sdk.Debug extensions too

 gnome-3-26/Dockerfile   | 2 +-
 gnome-3-28/Dockerfile   | 2 +-
 gnome-master/Dockerfile | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gnome-3-26/Dockerfile b/gnome-3-26/Dockerfile
index e3c44b7..32213ac 100644
--- a/gnome-3-26/Dockerfile
+++ b/gnome-3-26/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install -y gnome org.gnome.Sdk//3.26 org.gnome.Platform//3.26
+RUN flatpak install -y gnome org.gnome.Sdk//3.26 org.gnome.Sdk.Debug//3.26  org.gnome.Platform//3.26
diff --git a/gnome-3-28/Dockerfile b/gnome-3-28/Dockerfile
index eea7dc2..8ca0df2 100644
--- a/gnome-3-28/Dockerfile
+++ b/gnome-3-28/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install -y gnome org.gnome.Sdk//3.28 org.gnome.Platform//3.28
+RUN flatpak install -y gnome org.gnome.Sdk//3.28 org.gnome.Sdk.Debug//3.28  org.gnome.Platform//3.28
diff --git a/gnome-master/Dockerfile b/gnome-master/Dockerfile
index 7575aaf..5774a75 100644
--- a/gnome-master/Dockerfile
+++ b/gnome-master/Dockerfile
@@ -1,3 +1,3 @@
 FROM registry.gitlab.gnome.org/gnome/gnome-runtime-images/base
 
-RUN flatpak install -y gnome-nightly org.gnome.Sdk org.gnome.Platform
+RUN flatpak install -y gnome-nightly org.gnome.Sdk org.gnome.Sdk.Debug org.gnome.Platform