fix ingester: grpc method=/logproto.Querier/Query fail. (#5970)
fix ingester: grpc method=/logproto.Querier/Query fail. (#5970)

When ingester's ctx times out, don't try to use grpc to return data to
the querier again.
This PR fixes the ingester error rate > 0 for our loki cluster.
We rely on this error rate indicator for alarming

Fixes #5964
grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki,grafana/loki