Bump ch.qos.logback:logback-classic from 1.5.10 to 1.5.11

Bumps [ch.qos.logback:logback-classic](https://github.com/qos-ch/logback)
from 1.5.10 to 1.5.11.
- [Commits](qos-ch/logback@v_1.5.10...v_1.5.11)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
[Fix serverlessworkflow#444] Handling multiple strings