Shorten the last two commit SHA, because CONSISTENCY

Signed-off-by: Rémy Coutable <remy@rymai.me>

spec/support/test_env.rb

@@ -40,8 +40,8 @@ module TestEnv
     'wip'                                => 'b9238ee',
     'csv'                                => '3dd0896',
     'v1.1.0'                             => 'b83d6e3',
-    'add-ipython-files'                  => '6d85bb69',
-    'add-pdf-file'                       => 'e774ebd3'
+    'add-ipython-files'                  => '6d85bb6',
+    'add-pdf-file'                       => 'e774ebd'
   }.freeze
 
   # gitlab-test-fork is a fork of gitlab-fork, but we don't necessarily