Revert "See if switching to same image as releases fixes the build"

This reverts commit 502d166b7e.
2021-03-10 16:37:24 -06:00 · 2021-03-10 16:37:24 -06:00 · fa75f11ca1
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@ -1,4 +1,4 @@
-image: elixir:1.10.3
+image: elixir:1.9.4

 variables: &global_variables
  POSTGRES_DB: pleroma_test