Add valid Exception type to Except in ClusterPipeline

[bssyousefi]

First, thank you for the repo.

In a recent change in ClusterPipeline, TimeoutError has been added to reinitialize the nodes.

redis-py/redis/cluster.py

Line 2188 in 799716c

except (ConnectionError, TimeoutError):

However, it's a nested try-except and the upper except should also contain TimeoutError in order to respect cluster_error_retry_attempts.

redis-py/redis/cluster.py

Line 2115 in 799716c

retry_attempts = self.cluster_error_retry_attempts

[petyaslavova]

Hi @bssyousefi thank you for your contribution! We’ll review your change soon.