flashback get history `tidb_server_version` failed

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)

1. run workload
2. execute flashback sql: `flashback cluster to timestamp '2026-02-12 03:24:05.241000`

### 2. What did you expect to see? (Required)
SQL execution successful

### 3. What did you see instead (Required)
`[2026/02/12 03:34:07.428 +00:00] [INFO] [conn.go:1160] ["command dispatched failed"] [conn=2382365020] [session_alias=] [connInfo="id:2382365020, addr:10.200.70.4:51942 status:10, collation:utf8mb4_general_ci, user:root"] [command=Query] [status="inTxn:0, autocommit:1"] [sql="flashback cluster to timestamp '2026-02-12 03:24:05.241000'"] [txn_mode=PESSIMISTIC] [timestamp=464222223647637506] [err="[ddl:-1]Get history `tidb_server_version` failed, can't do flashback\ngithub.com/pingcap/errors.AddStack\n\t/go/pkg/mod/github.com/pingcap/errors@v0.11.5-0.20240318064555-6bd07397691f/errors.go:178\ngithub.com/pingcap/errors.Trace\n\t/go/pkg/mod/github.com/pingcap/errors@v0.11.5-0.20240318064555-6bd07397691f/juju_adaptor.go:15\ngithub.com/pingcap/tidb/pkg/ddl.(*ddl).DoDDLJob\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ddl/ddl.go:1300\ngithub.com/pingcap/tidb/pkg/ddl.(*ddl).FlashbackCluster\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/ddl/ddl_api.go:3180\ngithub.com/pingcap/tidb/pkg/executor.(*DDLExec).executeFlashBackCluster\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/ddl.go:557\ngithub.com/pingcap/tidb/pkg/executor.(*DDLExec).Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/ddl.go:186\ngithub.com/pingcap/tidb/pkg/executor/internal/exec.Next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/internal/exec/executor.go:403\ngithub.com/pingcap/tidb/pkg/executor.(*ExecStmt).next\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/adapter.go:1209\ngithub.com/pingcap/tidb/pkg/executor.(*ExecStmt).handleNoDelayExecutor\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/adapter.go:958\ngithub.com/pingcap/tidb/pkg/executor.(*ExecStmt).handleNoDelay\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/adapter.go:792\ngithub.com/pingcap/tidb/pkg/executor.(*ExecStmt).Exec\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/executor/adapter.go:557\ngithub.com/pingcap/tidb/pkg/session.runStmt\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/session/session.go:2277\ngithub.com/pingcap/tidb/pkg/session.(*session).ExecuteStmt\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/session/session.go:2138\ngithub.com/pingcap/tidb/pkg/server.(*TiDBContext).ExecuteStmt\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/server/driver_tidb.go:294\ngithub.com/pingcap/tidb/pkg/server.(*clientConn).handleStmt\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/server/conn.go:2030\ngithub.com/pingcap/tidb/pkg/server.(*clientConn).handleQuery\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/server/conn.go:1783\ngithub.com/pingcap/tidb/pkg/server.(*clientConn).dispatch\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/server/conn.go:1357\ngithub.com/pingcap/tidb/pkg/server.(*clientConn).Run\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/server/conn.go:1127\ngithub.com/pingcap/tidb/pkg/server.(*Server).onConn\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/pkg/server/server.go:740\nruntime.goexit\n\t/usr/local/go/src/runtime/asm_amd64.s:1650"]`

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

8.1.2-hotfix-20260206-8.1.2-fd-2401

Release Version: v8.1.2-20260210-93fa53f
Edition: Community
Git Commit Hash: 93fa53f74594f142b752f422bf630e7b22d1a779
Git Branch: heads/refs/tags/v8.1.2-20260210-93fa53f
UTC Build Time: 2026-02-10 08:12:58
GoVersion: go1.21.10
Race Enabled: false
Check Table Before Drop: false
Store: tikv