chore(mockery): add mockery configuration (#4941) #787

Job	Run time
Start	10s
Build integration tests	24s
Build Piper	1m 24s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 26s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 16s
Run integration tests ("TestCNBIntegrationNPMProject")	1m 52s
Run integration tests ("TestCNBIntegrationMultiImage")	2m 40s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 21s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 26s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 17s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 31s
Run integration tests ("TestGolangIntegration")	1m 38s
Run integration tests ("TestGradleIntegration")	1m 22s
Run integration tests ("TestMavenIntegration")	1m 44s
Run integration tests ("TestMTAIntegration")	2m 0s
Run integration tests ("TestTmsUploadIntegration")	50s
Run integration tests ("TestTmsExportIntegration")	45s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 21s
Finish	3s
	24m 30s

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