TestOperatorTestSuite/TestOperator is unstable

[HuSharp]

Flaky Test

TestOperatorTestSuite/TestOperator

Which jobs are failing

--- FAIL: TestOperatorTestSuite (4.72s)
    --- FAIL: TestOperatorTestSuite/TestOperator (4.71s)
        testutil.go:251: start to run test in pd mode
        testutil.go:256: finish to run test in pd mode
        testutil.go:259: start to run test in api mode
        api_check.go:41: 
            	Error Trace:	/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:41
            	            				/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:142
            	            				/home/runner/work/pd/pd/pkg/utils/testutil/api_check.go:114
            	            				/home/runner/work/pd/pd/tests/server/api/operator_test.go:115
            	            				/home/runner/work/pd/pd/tests/testutil.go:262
            	            				/home/runner/work/pd/pd/tests/server/api/operator_test.go:60
            	Error:      	Should not be: 200
            	Test:       	TestOperatorTestSuite/TestOperator
FAIL

CI link

https://github.com/tikv/pd/actions/runs/6333866899/job/17202604350?pr=7044
https://github.com/tikv/pd/actions/runs/6335196828/job/17205975836?pr=7170

Reason for failure (if possible)

Anything else

[HuSharp]

https://github.com/tikv/pd/actions/runs/6335956640/job/17208076748?pr=7143

[HuSharp]

new error msg
https://github.com/tikv/pd/actions/runs/6453754955/job/17517915613?pr=7044

--- FAIL: TestOperatorTestSuite (4.97s)
    --- FAIL: TestOperatorTestSuite/TestOperator (4.96s)
        testutil.go:263: start to run test in pd mode
        testutil.go:267: finish to run test in pd mode
        testutil.go:272: start to run test in api mode
        operator_test.go:226: 
            	Error Trace:	/home/runner/work/pd/pd/tests/pdctl/operator/operator_test.go:226
            	            				/home/runner/work/pd/pd/tests/testutil.go:276
            	            				/home/runner/work/pd/pd/tests/testutil.go:258
            	            				/home/runner/work/pd/pd/tests/pdctl/operator/operator_test.go:56
            	Error:      	"Success! The operator is created.\n" does not contain "not supported"
            	Test:       	TestOperatorTestSuite/TestOperator
FAIL

[rleungx]

https://github.com/tikv/pd/actions/runs/6455325902/job/17522618103

[CabinfeverB]

https://github.com/tikv/pd/actions/runs/6650164941/job/18069830850?pr=7246

[CabinfeverB]

https://github.com/tikv/pd/actions/runs/6650625085/job/18071076827?pr=7246 frequently :(

[lhy1024]

https://github.com/tikv/pd/actions/runs/6650625085/job/18071076827?pr=7246 frequently :(

I will fix it as soon as possible.