Bump org.slf4j:slf4j-api from 2.0.19 to 2.0.20 - #336

Submitted dependency-graph-reports/dynamicdependency-graphauto-submission-submit-gradle.json: The snapshot was accepted, but it is not for the default branch. It will not update dependency results for the repository.

Using Java 21 (temurin) with Gradle (using wrapper)