run single test TestRenameTables fails

[tiancaiamao]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

make failpoint-enable;
cd ddl;
go test -run TestRenameTables 

2. What did you expect to see? (Required)

Success

3. What did you see instead (Required)

--- FAIL: TestRenameTables (0.63s)
    table_test.go:43:
                Error Trace:    table_test.go:43
                                                        table_test.go:370
                Error:          Received unexpected error:
                                [ddl:-1]failed to notify PD the placement rules: infoSyncer is not initialized
                                github.com/pingcap/errors.AddStack
                                        /home/genius/go/pkg/mod/github.com/pingcap/[email protected]/errors.go:174
                                github.com/pingcap/errors.Trace
                                        /home/genius/go/pkg/mod/github.com/pingcap/[email protected]/juju_adaptor.go:15
                                github.com/pingcap/tidb/ddl.(*ddl).doDDLJob
                                        /home/genius/project/src/github.com/pingcap/tidb/ddl/ddl.go:627
                                github.com/pingcap/tidb/ddl.testCreateTableT
                                        /home/genius/project/src/github.com/pingcap/tidb/ddl/table_test.go:42
                                github.com/pingcap/tidb/ddl.TestRenameTables
                                        /home/genius/project/src/github.com/pingcap/tidb/ddl/table_test.go:370
                                testing.tRunner
                                        /home/genius/project/go/src/testing/testing.go:1193
                                runtime.goexit
                                        /home/genius/project/go/src/runtime/asm_amd64.s:1371
                Test:           TestRenameTables
FAIL

4. What is your TiDB version? (Required)

master

[tiancaiamao]

A subtask of #30822