Skip echo call for RedisCluster mode (#344)

echo is not available for RedisCluster mode hence skipping the echo in
cluster mode

Author: NishithHM

redisvl/redis/connection.py

@@ -400,7 +400,9 @@ def validate_sync_redis(
             redis_client.client_setinfo("LIB-NAME", _lib_name)
         except ResponseError:
             # Fall back to a simple log echo
-            redis_client.echo(_lib_name)
+            # For RedisCluster, echo is not available
+            if hasattr(redis_client, "echo"):
+                await redis_client.echo(_lib_name)
 
         # Get list of modules
         installed_modules = RedisConnectionFactory.get_modules(redis_client)
@@ -426,6 +428,8 @@ async def validate_async_redis(
         except ResponseError:
             # Fall back to a simple log echo
             await redis_client.echo(_lib_name)
+            if hasattr(redis_client, "echo"):
+                await redis_client.echo(_lib_name)
 
         # Get list of modules
         installed_modules = await RedisConnectionFactory.get_modules_async(redis_client)