fix cvmfs github CI issues with 5.4 #2397

Job	Run time
java_matrix	2s
build (macos-latest)	2m 54s
build (ubuntu-latest)	2m 41s
download_test_data	4s
unit_tests (25)	2m 57s
unit_tests (21)	3m 20s
test_decoder	2m 23s
test_clara	3m 24s
test_run-groovy	43s
spotbugs	6m 15s
test_coatjava (ubuntu-latest, eb-epc)	2m 3s
test_coatjava (ubuntu-latest, eb-eftpi)	2m 30s
test_coatjava (ubuntu-latest, eb-eg)	2m 9s
test_coatjava (macos-latest, eb-ep, ./run-eb-tests.sh -100 electronproton)	3m 12s
test_coatjava (ubuntu-latest, kpp)	3m 9s
test_coatjava (ubuntu-latest, eb-enc)	2m 6s
test_coatjava (ubuntu-latest, eb-ep)	2m 13s
release_build	-1s
generate_documentation	1m 6s
deploy_web_pages	0s
final	2s
	43m 12s

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