[pitivi] ci: Disable color in GStreamer logs

[Thibault Saunier <tsaunier src gnome org>]

commit a506fe1b8e9a2db2a83cf8790d0802ced7805d9e
Author: Thibault Saunier <tsaunier igalia com>
Date:   Thu Mar 5 08:53:06 2020 -0300

    ci: Disable color in GStreamer logs

 .gitlab-ci.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9f5071e9..15584300 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,6 +8,7 @@ variables:
   MANIFEST: build/flatpak/org.pitivi.Pitivi.json
   DBUS_ID: org.pitivi.Pitivi
   XUNIT_PATH: ${CI_PROJECT_DIR}/xunit.xml
+  GST_DEBUG_NO_COLOR: "true"
 
 
 .docker_image_template:
@@ -67,7 +68,7 @@ build:
   script:
     - export BUILDDIR=${HOME}/pitivi
     - export MANIFEST=${BUILDDIR}/build/flatpak/org.pitivi.Pitivi.json
-    - export RUN_IN_SANDBOX="flatpak-builder --disable-rofiles-fuse --filesystem=${BUILDDIR} 
--filesystem=${CI_PROJECT_DIR} --env=PITIVI_DEVELOPMENT=1 --env=GST_DEBUG=2 --env=GST_DEBUG_COLOR=no --run 
app ${MANIFEST}"
+    - export RUN_IN_SANDBOX="flatpak-builder --disable-rofiles-fuse --filesystem=${BUILDDIR} 
--filesystem=${CI_PROJECT_DIR} --env=PITIVI_DEVELOPMENT=1 --env=GST_DEBUG=2 --env=GST_DEBUG_NO_COLOR=true 
--run app ${MANIFEST}"
     - export FLATPAK_BUILDER_CACHE="--state-dir=${HOME}/flatpak-cache"
     - export FLATPAK_REPO="${CI_PROJECT_DIR}/flatpak_repo"