deliver a non-zero exit code if anything is different (#1023) #2010

Job	Run time
java_matrix	3s
build (macos-latest)	4m 18s
download_test_data	5s
build (ubuntu-latest)	2m 38s
unit_tests (21)	2m 45s
unit_tests (25)	2m 43s
generate_documentation	1m 2s
deploy_web_pages	11s
test_clara	3m 49s
spotbugs	6m 21s
test_run-groovy	27s
test_decoder	2m 52s
dependency_analysis	1m 33s
test_coatjava (ubuntu-latest, eb-eg)	1m 56s
test_coatjava (ubuntu-latest, eb-epc)	1m 54s
test_coatjava (ubuntu-latest, eb-enc)	2m 18s
test_coatjava (ubuntu-latest, kpp)	2m 47s
test_coatjava (ubuntu-latest, eb-eftpi)	1m 47s
test_coatjava (ubuntu-latest, eb-ep)	1m 51s
test_coatjava (macos-latest, eb-ep, ./run-eb-tests.sh -100 electronproton)	4m 6s
release_build	-1s
final	3s
	45m 28s

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