Can we build ffi now?

.github/workflows/rails-integration-tests.yml

@@ -17,7 +17,7 @@ jobs:
       - id: compute-outputs
         name: Compute outputs
         run: |
-          rails_versions=$(curl https://rubygems.org/api/v1/versions/rails.json | jq 'group_by(.number[:1])[] | (.[0].number) | select(.[:1]|tonumber > 5)' | jq -s -c)
+          rails_versions=$(curl https://rubygems.org/api/v1/versions/rails.json | jq 'group_by(.number[:1])[] | (.[0].number) | select(.[:1]|tonumber > 4)' | jq -s -c)
           echo "RAILS_VERSIONS=$rails_versions" >> $GITHUB_OUTPUT
   build-rails:
     strategy:

Dockerfile

@@ -1,5 +1,5 @@
 # We want to support older Rubies
-ARG RUBY_VERSION=3.1.6
+ARG RUBY_VERSION=2.7.8
 FROM registry.docker.com/library/ruby:$RUBY_VERSION-slim as base
 
 # Rails app lives here
@@ -42,7 +42,7 @@ FROM base
 
 # Install packages needed for running the tests
 RUN apt-get update -qq && \
-    apt-get install --no-install-recommends -y curl git && \
+    apt-get install --no-install-recommends -y build-essential curl git && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
 # Copy built artifacts: gems, application