Update dependencies. py3.7 support deprecated (flake8)

Author: cunla

.github/workflows/test.yml

@@ -52,7 +52,7 @@ jobs:
       fail-fast: false
       matrix:
         redis-image: ["redis:6.2.7", "redis:7.0.5"]
-        python-version: ["3.7", "3.10", "3.11"]
+        python-version: ["3.8", "3.10", "3.11"]
         redis-py: ["4.3.5", "4.3.4", "4.4.0"]
         include:
           - python-version: "3.10"