Bump cwl-utils from 0.14 to 0.15

Bumps cwl-utils from 0.14 to 0.15.

Release notes

Sourced from cwl-utils's releases.

v0.15

What's Changed

• Migrate format checking routines from cwltool by @​GlassOfWhiskey in common-workflow-language/cwl-utils#141

• upgrade to mypy 0.971 by @​mr-c in common-workflow-language/cwl-utils#139

• Moved kill_processes to sandbox destructor by @​GlassOfWhiskey in common-workflow-language/cwl-utils#140

• rename typeshed; misc cleanups by @​mr-c in common-workflow-language/cwl-utils#142

Full Changelog: https://github.com/common-workflow-language/cwl-utils/compare/v0.14...v0.15

Commits

• 661564d version 0.15 (#143)
• 25a35ab rename typeshed; misc cleanups (#142)
• a38de2e Migrate format checking routines from cwltool (#141)
• 6fbab67 Moved kill_processes to sandbox destructor (#140)
• a23db06 upgrade to mypy 0.971 (#139)
• See full diff in compare view

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