Update slf4j.version (release/4.2.x) (#2059)
Update slf4j.version (release/4.2.x) (#2059)

Co-authored-by: Renovate Bot <c71e7261d37a4f6ae4cfb0cbd79081310a237e67@renovateapp.com>
Co-authored-by: Jochen Schalanda <a43c420013ca055cc92ab03cc74d6f3bd5524c38@schalanda.name>
dropwizard/metrics,dropwizard/metrics,dropwizard/metrics