ci(publish): start redis container before testing shorebird_redis_client (#3797)

.github/workflows/publish_dart_package.yaml

@@ -14,6 +14,13 @@ on:
         description: |
           Tag prefix expected for this package (e.g., "shorebird_ci-v"). The
           version after the prefix must match the version in pubspec.yaml.
+      needs_redis:
+        required: false
+        default: false
+        type: boolean
+        description: |
+          Start a redis/redis-stack-server container before running tests.
+          Required for packages whose test suite connects to Redis.
 
 jobs:
   publish:
@@ -26,6 +33,12 @@ jobs:
       - name: 📚 Git Checkout
         uses: actions/checkout@v6
 
+      - name: 🐳 Run Redis
+        if: inputs.needs_redis
+        run: |
+          docker pull redis/redis-stack-server:latest
+          docker run --name test_redis -d -p 6379:6379 --rm -e REDIS_ARGS="--requirepass password" redis/redis-stack-server:latest
+
       - name: 🎯 Setup Dart
         uses: dart-lang/setup-dart@v1
         with:

.github/workflows/publish_shorebird_redis_client.yaml

@@ -11,5 +11,6 @@ jobs:
     with:
       working_directory: packages/redis_client
       tag_prefix: shorebird_redis_client-v
+      needs_redis: true
     permissions:
       id-token: write