Remove dubbo-test in dubbo-metrics,dubbo-registry,dubbo-serialization #11904

Job	Run time
Check if code needs formatting	45s
Check License	0s
Preparation for Unit Test	0s
integration-test-prepare	0s
samples-test-prepare	0s
Build Dubbo	0s
error-code-inspecting	0s
native-image-inspecting	0s
Unit Test On ubuntu-latest	0s
Samples Test on ubuntu-latest (JobId: ${{ matrix.job_id }})	0s
Integration Test on ubuntu-latest (JobId: ${{ matrix.job_id }})	0s
samples-test-result	5s
integration-test-result	4s
integration-jacoco-result-merge	0s
samples-jacoco-result-merge	0s
	54s

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