exclude .git on stashBack (#4854) #739

Job	Run time
Start	6s
Build integration tests	18s
Build Piper	1m 34s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 30s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 13s
Run integration tests ("TestCNBIntegrationNPMProject")	1m 58s
Run integration tests ("TestCNBIntegrationMultiImage")	2m 38s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 40s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 16s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 15s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 14s
Run integration tests ("TestGolangIntegration")	1m 39s
Run integration tests ("TestGradleIntegration")	1m 19s
Run integration tests ("TestMavenIntegration")	1m 43s
Run integration tests ("TestMTAIntegration")	2m 0s
Run integration tests ("TestTmsUploadIntegration")	51s
Run integration tests ("TestTmsExportIntegration")	44s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 9s
Finish	3s
	24m 10s

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