Bumps logback-classic from 1.0.9 to 1.2.0.

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
dependency-type: direct:production
...

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

• Commit 6cde6c0
• #48: Bump logback-classic from 1.0.9 to 1.2.0
• Branch master

dependabot[bot] authored GitHub committed