[gimp] gitlab-ci: temporary allow distcheck job failure.

[Jehan <jehanp src gnome org>]

commit e869a11270b221a86d656d69ef3deb658e373e20
Author: Jehan <jehan girinstud io>
Date:   Thu Oct 22 18:41:46 2020 +0200

    gitlab-ci: temporary allow distcheck job failure.
    
    I really don't like to flag the distcheck job as allowed to fail, but
    the issue we have with it right now (#5790) is very annoying and I have
    no idea where the weird uncleaned files come from. I can't reproduce
    this locally and these files are seemingly never created here during a
    distcheck.
    Since it makes all our pipelines fail, this makes it harder to diagnose
    and find real other bugs, so let's allow failure until we figure this
    out.

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2597218e74..d679192d77 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -143,6 +143,8 @@ gimp-autotools-debian:
     - make check
 
 gimp-distcheck-debian:
+  # Temporarily allow distcheck failure. See #5790
+  allow_failure: true
   extends: .gimp-debian-base
   script:
     - mkdir _build