conformance tests: do so with the mypc compiled version of cwltool #1948

Job	Run time
No leftovers	4m 28s
build_test_container	9m 39s
CWL conformance (v1.0, docker)	6m 37s
cwltool release test	16m 52s
Tox (3, 8, lint)	30s
CWL conformance (v1.0, singularity)	6m 35s
Tox (3, 8, unit)	6m 58s
CWL conformance (v1.0, podman)	6m 53s
CWL conformance (v1.1, docker)	8m 20s
Linters (lintreadme)	52s
Tox (3, 8, bandit)	28s
CWL conformance (v1.1, singularity)	9m 12s
Linters (shellcheck)	12s
Tox (3, 8, mypy)	8m 22s
CWL conformance (v1.1, podman)	8m 11s
Linters (pydocstyle)	20s
Tox (3, 9, lint)	26s
CWL conformance (v1.2, docker)	10m 13s
Tox (3, 9, unit)	6m 51s
CWL conformance (v1.2, singularity)	10m 21s
Tox (3, 9, bandit)	26s
CWL conformance (v1.2, podman)	10m 26s
Tox (3, 9, mypy)	8m 51s
Test on macos-latest	11m 51s
CWL conformance (v1.2, docker, --fast-parser)	10m 14s
Tox (3, 10, lint)	27s
Tox (3, 10, unit)	6m 38s
Tox (3, 10, bandit)	28s
Tox (3, 10, mypy)	8m 15s
Tox (3, 11, lint)	29s
Tox (3, 11, unit)	7m 8s
Tox (3, 11, bandit)	27s
Tox (3, 11, mypy)	7m 13s
Tox (3, 12, lint)	31s
Tox (3, 12, unit)	8m 55s
Tox (3, 12, bandit)	26s
Tox (3, 12, mypy)	8m 28s
	3h 33m 33s

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