TestForwardTSOUnexpectedToFollower1 cluster id mismatch

[okJiang]

Flaky Test

Which jobs are failing

    server_test.go:240: 
        	Error Trace:	/home/runner/work/pd/pd/tests/integrations/mcs/tso/server_test.go:240
        	            				/home/runner/work/pd/pd/tests/integrations/mcs/tso/server_test.go:383
        	Error:      	Received unexpected error:
        	            	Etcd cluster ID mismatch, expect 3809085038468569001, got 11081159918199474277
        	            	github.com/tikv/pd/pkg/utils/etcdutil.CheckClusterID
        	            		/home/runner/work/pd/pd/pkg/utils/etcdutil/etcdutil.go:102
        	            	github.com/tikv/pd/server.(*Server).startEtcd
        	            		/home/runner/work/pd/pd/server/server.go:340
        	            	github.com/tikv/pd/server.(*Server).Run
        	            		/home/runner/work/pd/pd/server/server.go:599
        	            	github.com/tikv/pd/tests.(*TestServer).Run
        	            		/home/runner/work/pd/pd/tests/cluster.go:128
        	            	github.com/tikv/pd/tests.RunServer.func1
        	            		/home/runner/work/pd/pd/tests/cluster.go:543
        	            	runtime.goexit
        	            		/opt/hostedtoolcache/go/1.23.4/x64/src/runtime/asm_amd64.s:1700
        	            	github.com/tikv/pd/tests.RunServers
        	            		/home/runner/work/pd/pd/tests/cluster.go:555
        	            	github.com/tikv/pd/tests.(*TestCluster).RunInitialServers
        	            		/home/runner/work/pd/pd/tests/cluster.go:567
        	            	github.com/tikv/pd/tests/integrations/mcs/tso.NewAPIServerForward
        	            		/home/runner/work/pd/pd/tests/integrations/mcs/tso/server_test.go:239
        	            	github.com/tikv/pd/tests/integrations/mcs/tso.TestForwardTSOUnexpectedToFollower1
        	            		/home/runner/work/pd/pd/tests/integrations/mcs/tso/server_test.go:383
        	            	testing.tRunner
        	            		/opt/hostedtoolcache/go/1.23.4/x64/src/testing/testing.go:1690
        	            	runtime.goexit
        	            		/opt/hostedtoolcache/go/1.23.4/x64/src/runtime/asm_amd64.s:1700
        	Test:       	TestForwardTSOUnexpectedToFollower1
--- FAIL: TestForwardTSOUnexpectedToFollower1 (3.57s)

CI link

https://github.com/tikv/pd/actions/runs/12579164147/job/35058911816?pr=8966

Reason for failure (if possible)

Anything else