Add support for cross-multiplying two or more data providers (#1298) #452

Job	Run time
build-and-verify (ubuntu-latest, 2.5, 8)	5m 44s
build-and-verify (ubuntu-latest, 2.5, 11)	4m 45s
build-and-verify (ubuntu-latest, 3.0, 8)	4m 53s
build-and-verify (ubuntu-latest, 3.0, 11)	5m 11s
build-and-verify (ubuntu-latest, 3.0, 17)	4m 36s
build-and-verify (ubuntu-latest, 3.0, 21)	3m 21s
build-and-verify (ubuntu-latest, 4.0, 8)	6m 14s
build-and-verify (ubuntu-latest, 4.0, 11)	5m 11s
build-and-verify (ubuntu-latest, 4.0, 17)	4m 38s
build-and-verify (ubuntu-latest, 4.0, 21)	3m 39s
build-and-verify (windows-latest, 2.5, 8)	5m 18s
build-and-verify (windows-latest, 3.0, 8)	5m 57s
build-and-verify (windows-latest, 4.0, 8)	6m 47s
build-and-verify (macos-latest, 2.5, 8)	5m 58s
build-and-verify (macos-latest, 3.0, 8)	6m 50s
build-and-verify (macos-latest, 4.0, 8)	8m 6s
release-spock (ubuntu-latest, 2.5, 8)	1m 29s
release-spock (ubuntu-latest, 3.0, 8)	1m 55s
release-spock (ubuntu-latest, 4.0, 8)	1m 35s
publish-release-docs (ubuntu-latest, 4.0, 21)	1m 48s
	1h 33m 55s

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