encountered TSO stream being closed unexpectedly

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)
1. deploy a v7.5.0 cluster
2. enable dist task and add index
3. during add index and update cluster to v7.5.1

### 2. What did you expect to see? (Required)
add index success
### 3. What did you see instead (Required)
get error for add index
```log
Error 1105 (HY000): encountered TSO stream being closed unexpectedly
```
the tidb log
```log
2024/02/26 18:35:39.713 +08:00] [ERROR] [pd_service_discovery.go:284] ["[pd] failed to update service mode"] [urls="[http://pd-peer:2379]"] [error="[PD:client:ErrClientGetClusterInfo]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp 10.200.59.224:2379: connect: connection refused\" target:pd-peer:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp 10.200.59.224:2379: connect: connection refused\" target:pd-peer:2379 status:TRANSIENT_FAILURE"]
[2024/02/26 18:35:40.085 +08:00] [ERROR] [tso_dispatcher.go:493] ["[tso] getTS error"] [dc-location=global] [stream-addr=http://pd-peer:2379] [error="[PD:client:ErrClientGetTSO]get TSO failed, after processing requests"]
[2024/02/26 18:35:40.085 +08:00] [ERROR] [pd.go:236] ["updateTS error"] [txnScope=global] [error="[PD:client:ErrClientTSOStreamClosed]encountered TSO stream being closed unexpectedly"]
```

releated issue: #47291
### 4. What is your TiDB version? (Required)
v7.5.0 -> v7.5.1