fix(Central Build): Fix handling legacy stage name for Jenkins pipeli… #877

Job	Run time
Start	8s
Build integration tests	27s
Build Piper	1m 29s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 37s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 27s
Run integration tests ("TestCNBIntegrationNPMProject")	1m 38s
Run integration tests ("TestCNBIntegrationMultiImage")	1m 35s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 37s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 37s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 23s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 21s
Run integration tests ("TestGolangIntegration")	1m 38s
Run integration tests ("TestGradleIntegration")	1m 30s
Run integration tests ("TestMavenIntegration")	1m 37s
Run integration tests ("TestMTAIntegration")	1m 36s
Run integration tests ("TestTmsUploadIntegration")	1m 1s
Run integration tests ("TestTmsExportIntegration")	1m 8s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 21s
Finish	2s
	24m 12s

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