[commit: ghc] wip/fix-sdist: gitlab-ci: Bump docker images (900e7c1)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : wip/fix-sdist
Link       : http://ghc.haskell.org/trac/ghc/changeset/900e7c108b4bee99de0fb103c2ccf0432b16f04d/ghc

>---------------------------------------------------------------

commit 900e7c108b4bee99de0fb103c2ccf0432b16f04d
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Mon Mar 18 23:51:35 2019 -0400

    gitlab-ci: Bump docker images
    
    To install lndir and un-break the source distribution job.


>---------------------------------------------------------------

900e7c108b4bee99de0fb103c2ccf0432b16f04d
 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9d9ebe2..2194122 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ variables:
   GIT_SSL_NO_VERIFY: "1"
 
   # Commit of ghc/ci-images repository from which to pull Docker images
-  DOCKER_REV: 6d19c3adc1f5c28c82aed8c5b1ac40931ac60f3f
+  DOCKER_REV: 7cbd823abe7eddd9c52a2e93062035b1c863605f
 
 before_script:
   - python3 .gitlab/fix-submodules.py