Bump ch.qos.logback:logback-core from 1.2.10 to 1.3.12 #830

Job	Run time
tests (Unit tests, test jacoco:report)	25s
tests (Style check, compile com.mycila:license-maven-plugin:check pmd:pmd pmd:cpd pmd:check pmd:c...	20s
tests (OSGi integration, install -P docker-integration-test,osgi-integration-tests -DskipUTs, osg...	21s
tests (Standalone integration 4.0, verify -P docker-integration-test,standalone-integration-tests...	19s
tests (Standalone integration 4.1, verify -P docker-integration-test,standalone-integration-tests...	23s
tests (Standalone integration 5.0-alpha1, verify -P docker-integration-test,standalone-integratio...	23s
tests (Python integration, verify -P docker-integration-test,python-integration-tests -DskipUTs, ...	26s
	2m 37s

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