Make denoising deterministic and speed it up #1792

Job	Run time
java_matrix	3s
download_test_data	4s
build (macos-latest)	2m 39s
build (ubuntu-latest)	2m 50s
unit_tests (25)	3m 3s
unit_tests (21)	2m 57s
release_build	0s
spotbugs	6m 40s
test_run-groovy	44s
dependency_analysis	57s
test_coatjava (ubuntu-latest, eb-ep)	2m 37s
test_coatjava (ubuntu-latest, eb-enc)	1m 53s
test_coatjava (ubuntu-latest, kpp)	3m 5s
test_coatjava (ubuntu-latest, eb-epc)	2m 10s
test_coatjava (ubuntu-latest, eb-eg)	1m 59s
test_coatjava (ubuntu-latest, eb-eftpi)	1m 53s
test_coatjava (macos-latest, eb-ep, ./run-eb-tests.sh -100 electronproton)	2m 59s
test_decoder	3m 5s
test_clara	4m 1s
generate_documentation	56s
deploy_web_pages	0s
final	2s
	44m 37s

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