CI: add Redis service

Author: chfoo

.github/workflows/test.yml

@@ -11,6 +11,19 @@ jobs:
   test:
     runs-on: ubuntu-latest
 
+    services:
+      redis:
+        image: redis
+        # Set health checks to wait until redis has started
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          # Maps port 6379 on service container to the host
+          - 6379:6379
+
     steps:
     - uses: actions/checkout@v4
     - name: Set up Python