redis in github actions

.github/workflows/main.yaml

@@ -5,6 +5,18 @@ on: [ push ]
 jobs:
   build:
     runs-on: ubuntu-latest
+    services:
+      redis:
+        # Docker Hub image
+        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:
+          - 6379:6379
     strategy:
       matrix:
         python-version: [ "3.9", "3.10" ]