add regression test

.github/workflows/continuous_integration.yml

@@ -33,7 +33,7 @@ jobs:
           - ruby: "2.5"
             appraisal: "activerecord_5"
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Ruby ${{ matrix.ruby }}
       uses: ruby/setup-ruby@v1
       with:

.github/workflows/regression_test.yml

@@ -0,0 +1,29 @@
+name: Regression Test
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 15 * * 1"
+env:
+  BUNDLE_CLEAN: "true"
+  BUNDLE_PATH: vendor/bundle
+  BUNDLE_JOBS: 3
+  BUNDLE_RETRY: 3
+jobs:
+  specs:
+    name: Run specs
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Set up Ruby ${{ matrix.ruby }}
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ruby
+      - name: Install bundler
+        run: |
+          bundle update
+      - name: Run specs
+        run: |
+          bundle exec rake spec