Test against latest Rails 8.1 release

Author: aidanharan

Dockerfile.ci

@@ -9,6 +9,6 @@ WORKDIR $WORKDIR
 
 COPY . $WORKDIR
 
-RUN RAILS_BRANCH=8-1-stable bundle install --jobs `expr $(cat /proc/cpuinfo | grep -c "cpu cores") - 1` --retry 3
+RUN bundle install --jobs `expr $(cat /proc/cpuinfo | grep -c "cpu cores") - 1` --retry 3
 
 CMD ["sh"]

compose.ci.yaml

@@ -4,16 +4,13 @@ services:
   ci:
     environment:
       - ACTIVERECORD_UNITTEST_HOST=sqlserver
-      - RAILS_BRANCH=8-1-stable
     build:
       context: .
       dockerfile: Dockerfile.ci
     command: wait-for sqlserver:1433 -- bundle exec rake test
     depends_on:
       - "sqlserver"
   standardrb:
-    environment:
-      - RAILS_BRANCH=8-1-stable
     build:
       context: .
       dockerfile: Dockerfile.ci