applies the new conventions for imaging tools agreed at BioHackEU23 #176

Job	Run time
Setup cache and determine changed repositories (3.7)	47s
Check file sizes	5s
Lint tool-list (3.7)	49s
Lint R scripts (ubuntu-20.04, release)	1m 32s
Lint Python scripts (3.7)	18s
Test tools (0, 3.7)	18m 35s
Test tools (1, 3.7)	15m 57s
Test tools (2, 3.7)	18m 34s
Test tools (3, 3.7)	16m 31s
Combine chunked test results (3.7)	39s
Check workflow success	1s
Deploy	1s
Report deploy status	1s
	1h 13m 50s

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