chore: Bump redis to the 7.2 and the client with hiredis (#863)

Author: ncloudioj

dev/docker-compose.yaml

@@ -1,7 +1,7 @@
 version: "3"
 services:
   redis:
-    image: redis:6.2
+    image: redis:7.2
     ports:
       - "6379:6379"
 

merino/cache/redis.py

@@ -49,7 +49,8 @@ async def set(
 
     async def close(self) -> None:
         """Close the Redis connection."""
-        await self.redis.close()
+        # "type: ignore" was added to suppress a false alarm.
+        await self.redis.aclose()  # type: ignore
 
     def register_script(self, sid: str, script: str) -> None:
         """Register a Lua script in Redis. Regist multiple scripts using the same `sid`

pyproject.toml

@@ -21,14 +21,14 @@ dependencies = [
     "google-cloud-storage>=2.16.0,<3",
     "google-cloud-bigquery>=3.9.0,<4",
     "Pillow>=10.2.0,<11",
-    "redis>=4.5.4,<5",
     "types-python-dateutil>=2.8.19.13,<3",
     "pydantic>=2.1.0,<3",
     "scipy>=1.14.1,<2",
     "orjson>=3.10.7,<4",
     "tenacity>=9.0.0,<10",
     "gcloud-aio-storage>=9.3.0,<10",
     "ua-parser>=1.0,<2.0",
+    "redis[hiredis]>=5.2.1,<6",
 ]
 
 [project.scripts]