Bump ring from 0.16.18 to 0.16.19 (#695)
Bump ring from 0.16.18 to 0.16.19 (#695)

Bumps [ring](https://github.com/briansmith/ring) from 0.16.18 to 0.16.19.
- [Release notes](https://github.com/briansmith/ring/releases)
- [Commits](https://github.com/briansmith/ring/commits)

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

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
alex/otp-cop