Add actions setup

.github/actions/setup/action.yml

@@ -0,0 +1,12 @@
+name: setup
+description: Setup the repository
+runs:
+  using: composite
+  steps:
+    - uses: ruby/setup-ruby@v1
+      with:
+        bundler-cache: true
+    - uses: actions/setup-node@v4
+      with:
+        node-version: 'lts/*'
+        cache: yarn

.github/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: ci
+on:
+  push:
+    branches:
+      - main
+      - actions
+    pull_request:
+      branches:
+        - main
+        - actions
+
+jobs:
+  rspec:
+    runs-on: ubuntu-latest
+    services:
+      mariadb:
+        image: mariadb:10.4
+        env:
+          MARIADB_ALLOW_EMPTY_ROOT_PASSWORD: true
+        ports:
+          - 3306:3306
+    env:
+      RAILS_ENV: test
+      DATABASE_URL: mysql2://[email protected]:3306/incidents_test
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/setup
+      - run: bin/setup
+      - run: bundle exec rspec