feat: support for direct key-value pair writing in WritePipelineEnv … #936

Job	Run time
Start	6s
Build Piper	1m 17s
Build integration tests	12s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 38s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 20s
Run integration tests ("TestCNBIntegrationNPMProject")	1m 56s
Run integration tests ("TestCNBIntegrationMultiImage")	2m 30s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 19s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 17s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 15s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 15s
Run integration tests ("TestGolangIntegration")	1m 44s
Run integration tests ("TestGradleIntegration")	1m 20s
Run integration tests ("TestMavenIntegration")	1m 45s
Run integration tests ("TestMTAIntegration")	1m 58s
Run integration tests ("TestTmsUploadIntegration")	50s
Run integration tests ("TestTmsExportIntegration")	50s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 9s
Finish	2s
	23m 43s

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