feat(vault): Facilitate Vault OIDC token (#4916) #768

Job	Run time
Start	7s
Build Piper	1m 41s
Build integration tests	20s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 32s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 18s
Run integration tests ("TestCNBIntegrationNPMProject")	2m 14s
Run integration tests ("TestCNBIntegrationMultiImage")	3m 8s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 39s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 29s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 24s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 26s
Run integration tests ("TestGolangIntegration")	1m 44s
Run integration tests ("TestGradleIntegration")	1m 22s
Run integration tests ("TestMavenIntegration")	1m 42s
Run integration tests ("TestMTAIntegration")	2m 2s
Run integration tests ("TestTmsUploadIntegration")	57s
Run integration tests ("TestTmsExportIntegration")	59s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 29s
Finish	2s
	26m 35s

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