Test against multiple PostgreSQL versions

.github/workflows/ruby.yml

@@ -14,23 +14,11 @@ jobs:
     name: Ruby specs
     runs-on: ubuntu-latest
 
-    services:
-      db:
-        image: postgres:12
-        ports: ['5432:5432']
-        env:
-          POSTGRES_HOST_AUTH_METHOD: trust
-
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 5
-
     strategy:
       matrix:
         ruby-version: ['3.0', '3.1', '3.2', '3.3']
         gemfile: [rails_7.0, rails_7.1]
+        postgres-version: ['12', '16']
         channel: ['stable']
 
         include:
@@ -61,11 +49,13 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+    - uses: ankane/setup-postgres@v1
+      with:
+        postgres-version: ${{ matrix.postgres-version }}
     - name: Set up Database
       run: |
-        psql -c "CREATE ROLE runner SUPERUSER LOGIN CREATEDB;" -U postgres -h localhost
-        psql -c "CREATE DATABASE chronomodel;" -U postgres -h localhost
-        psql -c "CREATE DATABASE chronomodel_railsapp;" -U postgres -h localhost
+        psql -c "CREATE DATABASE chronomodel;" -U runneradmin
+        psql -c "CREATE DATABASE chronomodel_railsapp;" -U runneradmin
     - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with: