Bump mypy from 1.6.1 to 1.7.1 #1876

Job	Run time
build_test_container	5m 4s
No leftovers	7m 7s
CWL conformance (v1.0, docker)	4m 21s
Test on macos-latest	8m 28s
CWL conformance (v1.0, singularity)	7m 10s
CWL conformance (v1.0, podman)	4m 13s
cwltool release test	20m 2s
CWL conformance (v1.1, docker)	6m 1s
CWL conformance (v1.1, singularity)	6m 46s
CWL conformance (v1.1, podman)	9m 55s
CWL conformance (v1.2, docker)	12m 43s
CWL conformance (v1.2, singularity)	9m 3s
Tox (3, 8, lint)	1s
Linters (lintreadme)	1m 4s
CWL conformance (v1.2, podman)	8m 9s
Tox (3, 8, unit)	1s
Linters (shellcheck)	14s
CWL conformance (v1.2, docker, --fast-parser)	12m 55s
Tox (3, 8, bandit)	1s
Linters (pydocstyle)	15s
Tox (3, 8, mypy)	1s
Tox (3, 9, lint)	1s
Tox (3, 9, unit)	1s
Tox (3, 9, bandit)	1s
Tox (3, 9, mypy)	1s
Tox (3, 10, lint)	48s
Tox (3, 10, unit)	1m 18s
Tox (3, 10, bandit)	31s
Tox (3, 10, mypy)	1m 1s
Tox (3, 11, lint)	24s
Tox (3, 11, unit)	19s
Tox (3, 11, bandit)	41s
Tox (3, 11, mypy)	17s
Tox (3, 12, lint)	1s
Tox (3, 12, unit)	1s
Tox (3, 12, bandit)	1s
Tox (3, 12, mypy)	1s
	2h 9m 1s

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