[gedit-plugins/flake8] Update .gitlab-ci.yml

[Jordi Mas <jmas src gnome org>]

commit a8f8f75c98ae852e2a116a71b1a79276544d3582
Author: Jordi Mas <jmas softcatala org>
Date:   Thu May 16 11:56:23 2019 +0000

    Update .gitlab-ci.yml

 .gitlab-ci.yml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 13f9f05..307bc2f 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,10 +4,6 @@ stages:
     - build
     - check
 
-before_script:
-    - export DEBIAN_FRONTEND=noninteractive
-    - apt-get update -y
-    - apt-get install python3 python3-pip python3-dbus
 
 build:
   stage: build
@@ -18,7 +14,7 @@ build:
     - apt-get install libgit2-glib-1.0-dev libglib2.0-dev libgtk-3-dev -y
     - apt-get install libgtksourceview-4-dev libgucharmap-2-90-dev libpeas-dev -y
     - apt-get install valac libvte-2.91-dev libzeitgeist-2.0-dev gedit-dev -y
-    - apt-get install python3-dbus python-dbus-dev python3-gi appstream -y
+    - apt-get install python3 python3-dbus python-dbus-dev python3-gi appstream -y
     - apt-get install meson ninja-build -y
 
   script:
@@ -29,11 +25,14 @@ check:
   stage: check
   before_script:
     - export DEBIAN_FRONTEND=noninteractive
+    - apt-get update -y
+    - apt-get install python3 python3-pip python3-dbus
     - python3 -m pip install flake8
 
   script:
     - cd plugins
     - flake8 --select=F --ignore=F401
+    - allow_failure: true