fix image name

Author: abrookins

.github/workflows/python-tests.yml

@@ -35,7 +35,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [3.12]
-        redis-version: ['redis-stack:6.2.6-v9', 'redis:8.0.3', 'redis:latest']
+        redis-version: ['redis/redis-stack:6.2.6-v9', 'redis:8.0.3', 'redis:latest']
 
     steps:
     - uses: actions/checkout@v3