Merge pull request #13 from MatthiasValvekens/bugfix/asn1crypto-futur… #33

Job	Run time
build	12s
pytest-minimal-dependencies (3.7)	41s
pytest-coverage (3.7)	1m 10s
pytest-minimal-dependencies (3.8)	33s
pytest-coverage (3.8)	1m 9s
pytest-coverage (3.9)	1m 5s
pytest-minimal-dependencies (3.9)	37s
pytest-coverage (3.10)	1m 3s
pytest-minimal-dependencies (3.10)	34s
pytest-coverage (3.11)	1m 7s
pytest-minimal-dependencies (3.11)	35s
codecov-upload	10s
	8m 56s

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