applies the new conventions for imaging tools agreed at BioHackEU23 #178

Job	Run time
Setup cache and determine changed repositories (3.7)	1m 16s
Lint tool-list (3.7)	33s
Lint R scripts (ubuntu-20.04, release)	1m 54s
Check file sizes	5s
Lint Python scripts (3.7)	19s
Test tools (0, 3.7)	27m 51s
Test tools (1, 3.7)	26m 48s
Test tools (2, 3.7)	31m 48s
Test tools (3, 3.7)	40m 52s
Combine chunked test results (3.7)	38s
Check workflow success	1s
Deploy	0s
Report deploy status	0s
	2h 12m 5s

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