fix: too long string written to cpe git.commitMessage (#5147) #872

Job	Run time
Start	10s
Build integration tests	20s
Build Piper	1m 20s
Run integration tests ("(TestCNBIntegrationBindings\|TestCNBIntegrationWrongBuilderProject\|TestCNB...	1m 47s
Run integration tests ("TestCNBIntegrationPreserveFiles\b")	1m 24s
Run integration tests ("TestCNBIntegrationNPMProject")	2m 3s
Run integration tests ("TestCNBIntegrationMultiImage")	2m 37s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksBuildpacklessProject")	1m 38s
Run integration tests ("TestCNBIntegrationNPMCustomBuildpacksFullProject")	1m 27s
Run integration tests ("TestCNBIntegrationProjectDescriptor")	1m 26s
Run integration tests ("TestCNBIntegrationPrePostBuildpacks")	1m 30s
Run integration tests ("TestGolangIntegration")	1m 51s
Run integration tests ("TestGradleIntegration")	1m 23s
Run integration tests ("TestMavenIntegration")	1m 47s
Run integration tests ("TestMTAIntegration")	2m 7s
Run integration tests ("TestTmsUploadIntegration")	59s
Run integration tests ("TestTmsExportIntegration")	48s
Run integration tests ("Test(Gauge\|GCS\|GitHub\|GitOps\|Influx\|NPM\|Piper\|Python\|Sonar\|Vault\|Karma)In...	1m 18s
Finish	2s
	25m 57s

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