Use three variants instead of four to avoid complexity explosion -- t… #201

Job	Run time
docs	1m 29s
verification (Debug, exceptions, 14, gcc)	3m 2s
verification (Debug, exceptions, 14, clang)	2m 56s
verification (Debug, exceptions, 17, gcc)	2m 58s
verification (Debug, exceptions, 17, clang)	2m 57s
verification (Debug, exceptions, 20, gcc)	2m 58s
verification (Debug, exceptions, 20, clang)	2m 58s
verification (Debug, no-exceptions, 14, clang)	2m 57s
verification (Debug, no-exceptions, 17, gcc)	2m 57s
verification (Debug, no-exceptions, 17, clang)	2m 50s
verification (Debug, no-exceptions, 20, gcc)	2m 54s
verification (Debug, no-exceptions, 20, clang)	2m 57s
verification (Release, exceptions, 14, gcc)	2m 54s
verification (Release, exceptions, 14, clang)	2m 55s
verification (Release, exceptions, 17, gcc)	2m 56s
verification (Release, exceptions, 17, clang)	2m 55s
verification (Release, exceptions, 20, gcc)	3m 0s
verification (Release, exceptions, 20, clang)	2m 57s
verification (Release, no-exceptions, 14, gcc)	1s
verification (Release, no-exceptions, 14, clang)	2m 56s
verification (Release, no-exceptions, 17, gcc)	1s
verification (Release, no-exceptions, 17, clang)	1s
verification (Release, no-exceptions, 20, gcc)	1s
verification (Release, no-exceptions, 20, clang)	1s
verification (Coverage, no-exceptions, 14, gcc)	2m 56s
sonarqube	0s
deploy-docs	0s
	57m 27s

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