br error prompt not accurate when running br backup and connect to PD failed

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)
1. running br backup full command, and somehow it failed to connect to PD

### 2. What did you expect to see? (Required)
1. backup should fail, and error prompt should be accurate

### 3. What did you see instead (Required)
1. error information not accurate, it complains "running BR in incompatible version of cluster", actually br and tidb cluster is same version, and rerun the backup can be successful.

```
[2024/11/18 03:13:35.376 +00:00] [INFO] [meminfo.go:179] ["use cgroup memory hook because TiDB is in the container"]
[2024/11/18 03:13:35.376 +00:00] [INFO] [info.go:52] ["Welcome to Backup & Restore (BR)"] [release-version=v8.1.1] [git-hash=a7df4f9845d5d6a590c5d45dad0dcc9f21aa8765] [git-branch=HEAD] [go-version=go1.21.13] [utc-build-time="2024-08-22 05:51:39"] [race-enabled=false]
[2024/11/18 03:13:35.376 +00:00] [INFO] [common.go:755] [arguments] [__command="br backup full"] [checksum-concurrency=64] [concurrency=128] [ignore-stats=false] [pd="[http://downstream-pd:2379]"] [storage=s3://udsv2/fullback_8.1_with_stats]
[2024/11/18 03:13:35.378 +00:00] [INFO] [conn.go:159] ["new mgr"] [pdAddrs="[downstream-pd:2379]"]
[2024/11/18 03:13:35.381 +00:00] [INFO] [pd_service_discovery.go:991] ["[pd] update member urls"] [old-urls="[http://downstream-pd:2379]"] [new-urls="[http://downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379,http://downstream-pd-1.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379,http://downstream-pd-2.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379]"]
[2024/11/18 03:13:35.381 +00:00] [INFO] [pd_service_discovery.go:1016] ["[pd] switch leader"] [new-leader=http://downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379] [old-leader=]
[2024/11/18 03:13:35.381 +00:00] [INFO] [pd_service_discovery.go:498] ["[pd] init cluster id"] [cluster-id=7437383287030019589]
[2024/11/18 03:13:36.382 +00:00] [WARN] [pd_service_discovery.go:509] ["[pd] failed to check service mode and will check later"] [error="[PD:client:ErrClientGetClusterInfo]error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\" target:downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\" target:downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379 status:TRANSIENT_FAILURE"]
[2024/11/18 03:13:36.384 +00:00] [INFO] [collector.go:224] ["units canceled"] [cancel-unit=0]
[2024/11/18 03:13:36.384 +00:00] [INFO] [collector.go:78] ["Full Backup failed summary"] [total-ranges=0] [ranges-succeed=0] [ranges-failed=0]
[2024/11/18 03:13:36.384 +00:00] [WARN] [resource_manager_client.go:302] ["[resource_manager] get token stream error"] [error="rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\""]
[2024/11/18 03:13:36.384 +00:00] [INFO] [resource_manager_client.go:290] ["[resource manager] exit resource token dispatcher"]
[2024/11/18 03:13:36.384 +00:00] [INFO] [pd_service_discovery.go:910] ["[pd] cannot update member from this url"] [url=http://downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379] [error="[PD:client:ErrClientGetMember]error:rpc error: code = Canceled desc = context canceled target:downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379 status:TRANSIENT_FAILURE: error:rpc error: code = Canceled desc = context canceled target:downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379 status:TRANSIENT_FAILURE"]
[2024/11/18 03:13:36.384 +00:00] [ERROR] [backup.go:57] ["failed to backup"] [error="running BR in incompatible version of cluster, if you believe it's OK, use --check-requirements=false to skip.: rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\""] [errorVerbose="rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\"\ngithub.com/tikv/pd/client.(*client).respForErr\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/client.go:1580\ngithub.com/tikv/pd/client.(*client).GetAllStores\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/client.go:1202\ngithub.com/pingcap/tidb/br/pkg/version.CheckClusterVersion\n\t/workspace/source/tidb/br/pkg/version/version.go:89\ngithub.com/pingcap/tidb/br/pkg/conn.NewMgr\n\t/workspace/source/tidb/br/pkg/conn/conn.go:176\ngithub.com/pingcap/tidb/br/pkg/task.NewMgr\n\t/workspace/source/tidb/br/pkg/task/common.go:651\ngithub.com/pingcap/tidb/br/pkg/task.RunBackup\n\t/workspace/source/tidb/br/pkg/task/backup.go:406\nmain.runBackupCommand\n\t/workspace/source/tidb/br/cmd/br/backup.go:56\nmain.newFullBackupCommand.func1\n\t/workspace/source/tidb/br/cmd/br/backup.go:148\ngithub.com/spf13/cobra.(*Command).execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:983\ngithub.com/spf13/cobra.(*Command).ExecuteC\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1115\ngithub.com/spf13/cobra.(*Command).Execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1039\nmain.main\n\t/workspace/source/tidb/br/cmd/br/main.go:36\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:267\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1650\nrunning BR in incompatible version of cluster, if you believe it's OK, use --check-requirements=false to skip."] [stack="main.runBackupCommand\n\t/workspace/source/tidb/br/cmd/br/backup.go:57\nmain.newFullBackupCommand.func1\n\t/workspace/source/tidb/br/cmd/br/backup.go:148\ngithub.com/spf13/cobra.(*Command).execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:983\ngithub.com/spf13/cobra.(*Command).ExecuteC\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1115\ngithub.com/spf13/cobra.(*Command).Execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1039\nmain.main\n\t/workspace/source/tidb/br/cmd/br/main.go:36\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:267"]
[2024/11/18 03:13:36.384 +00:00] [ERROR] [pd_service_discovery.go:559] ["[pd] failed to update member"] [urls="[http://downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379,http://downstream-pd-1.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379,http://downstream-pd-2.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc:2379]"] [error="context canceled"] [errorVerbose="context canceled\ngithub.com/pingcap/errors.AddStack\n\t/root/go/pkg/mod/github.com/pingcap/errors@v0.11.5-0.20240318064555-6bd07397691f/errors.go:178\ngithub.com/pingcap/errors.Trace\n\t/root/go/pkg/mod/github.com/pingcap/errors@v0.11.5-0.20240318064555-6bd07397691f/juju_adaptor.go:15\ngithub.com/tikv/pd/client/retry.(*Backoffer).Exec\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/retry/backoff.go:94\ngithub.com/tikv/pd/client.(*pdServiceDiscovery).updateMemberLoop\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/pd_service_discovery.go:558\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1650"] [stack="github.com/tikv/pd/client.(*pdServiceDiscovery).updateMemberLoop\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/pd_service_discovery.go:559"]
[2024/11/18 03:13:36.384 +00:00] [INFO] [pd_service_discovery.go:550] ["[pd] exit member loop due to context canceled"]
[2024/11/18 03:13:36.384 +00:00] [ERROR] [main.go:38] ["br failed"] [error="running BR in incompatible version of cluster, if you believe it's OK, use --check-requirements=false to skip.: rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\""] [errorVerbose="rpc error: code = Unavailable desc = connection error: desc = \"transport: Error while dialing: dial tcp: lookup downstream-pd-0.downstream-pd-peer.uds-cdc-br-scenario-restore-tps-7683462-1-596.svc: i/o timeout\"\ngithub.com/tikv/pd/client.(*client).respForErr\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/client.go:1580\ngithub.com/tikv/pd/client.(*client).GetAllStores\n\t/root/go/pkg/mod/github.com/tikv/pd/client@v0.0.0-20240806105739-10ecdbe92b55/client.go:1202\ngithub.com/pingcap/tidb/br/pkg/version.CheckClusterVersion\n\t/workspace/source/tidb/br/pkg/version/version.go:89\ngithub.com/pingcap/tidb/br/pkg/conn.NewMgr\n\t/workspace/source/tidb/br/pkg/conn/conn.go:176\ngithub.com/pingcap/tidb/br/pkg/task.NewMgr\n\t/workspace/source/tidb/br/pkg/task/common.go:651\ngithub.com/pingcap/tidb/br/pkg/task.RunBackup\n\t/workspace/source/tidb/br/pkg/task/backup.go:406\nmain.runBackupCommand\n\t/workspace/source/tidb/br/cmd/br/backup.go:56\nmain.newFullBackupCommand.func1\n\t/workspace/source/tidb/br/cmd/br/backup.go:148\ngithub.com/spf13/cobra.(*Command).execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:983\ngithub.com/spf13/cobra.(*Command).ExecuteC\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1115\ngithub.com/spf13/cobra.(*Command).Execute\n\t/root/go/pkg/mod/github.com/spf13/cobra@v1.8.0/command.go:1039\nmain.main\n\t/workspace/source/tidb/br/cmd/br/main.go:36\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:267\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1650\nrunning BR in incompatible version of cluster, if you believe it's OK, use --check-requirements=false to skip."] [stack="main.main\n\t/workspace/source/tidb/br/cmd/br/main.go:38\nruntime.main\n\t/usr/local/go/src/runtime/proc.go:267"]

```
### 4. What is your TiDB version? (Required)

[release-version=v8.1.1]
[git-hash=a7df4f9845d5d6a590c5d45dad0dcc9f21aa8765]