Add option to create a minimal markdown test report #1926

Job	Run time
deploy	40s
test (3.8, lint)	39s
test (3.8, lint_docs)	1m 25s
test (3.8, mypy)	45s
test (3.8, unit-quick)	20m 6s
test (3.8, unit-diagnostic-servebasic-gx-dev)	4m 21s
test (3.8, unit-nonredundant-noclientbuild-noshed-gx-2205)	23m 33s
test (3.8, unit-nonredundant-noclientbuild-noshed-gx-231)	26m 12s
test (3.8, unit-nonredundant-noclientbuild-noshed-gx-dev)	27m 6s
test (3.8, unit-nonredundant-noclientbuild-noshed-nogx)	56m 54s
test (3.8, unit-diagnostic-serveclientcmd)	4m 15s
test (3.11, lint)	44s
test (3.11, mypy)	44s
test (3.11, unit-quick)	17m 17s
	3h 4m 41s

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