Bump gradle from 4.2.0 to 4.2.1
Bump gradle from 4.2.0 to 4.2.1

Bumps gradle from 4.2.0 to 4.2.1.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
pyamsoft/zaptorch,pyamsoft/zaptorch