CI: set bundle in deployment mode

This will require Gemfile.lock integrity for a CI build to pass, like we
reuquire on prod.

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bee338a39aa7a654e8cee9480fe339bb906157c6..7a20909a26d996ebf88ab18f3d54054b1eb8d5ba 100644 (file)
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -48,6 +48,7 @@ before_script:
   - apt-get update -q && apt-get install -yqq git libicu-dev libidn11-dev nodejs
   - corepack enable && yarn set version latest
   - bundle config set path 'vendor'
+  - bundle config set deployment 'true'
   - bundle config without 'development production'
   - ruby -v
   - bundle install -j $(nproc)