Bump mypy from 1.3.0 to 1.6.0 #1798

Job	Run time
No leftovers	6m 30s
Tox (3, 8, lint)	1s
Tox (3, 8, unit)	1s
cwltool release test	7m 55s
CWL conformance (v1.0, docker)	3m 36s
Tox (3, 8, bandit)	1s
CWL conformance (v1.0, singularity)	3m 37s
Tox (3, 8, mypy)	1s
Linters (lintreadme)	50s
CWL conformance (v1.0, podman)	4m 42s
Tox (3, 9, lint)	1s
Linters (shellcheck)	27s
CWL conformance (v1.1, docker)	5m 36s
Tox (3, 9, unit)	1s
Linters (pydocstyle)	29s
CWL conformance (v1.1, singularity)	9m 34s
build_test_container	1m 14s
Tox (3, 9, bandit)	1s
CWL conformance (v1.1, podman)	5m 14s
Tox (3, 9, mypy)	1s
CWL conformance (v1.2, docker)	7m 41s
Tox (3, 10, lint)	43s
Tox (3, 10, unit)	37s
CWL conformance (v1.2, singularity)	8m 38s
Test on macos-latest	6m 0s
Tox (3, 10, bandit)	37s
CWL conformance (v1.2, podman)	7m 1s
Tox (3, 10, mypy)	51s
CWL conformance (v1.2, docker, --fast-parser)	6m 21s
Tox (3, 11, lint)	3s
Tox (3, 11, unit)	1s
Tox (3, 11, bandit)	30s
Tox (3, 11, mypy)	1s
Tox (3, 12, lint)	1s
Tox (3, 12, unit)	1s
Tox (3, 12, bandit)	1s
Tox (3, 12, mypy)	1s
	1h 29m 0s

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