v1.15.0

ReverseDiff v1.15.0

Diff since v1.14.6

Closed issues:

• @grad_from_chainrules hygiene: cannot use custom types in method signature (#224)

Merged pull requests:

• Bump codecov/codecov-action from 1 to 3 (#228) (@dependabot[bot])
• Bump actions/cache from 1 to 3 (#229) (@dependabot[bot])
• Bump actions/checkout from 2 to 3 (#230) (@dependabot[bot])
• Allow custom struct args to grad_from_chainrules macro (#232) (@mohamed82008)