[NEUTRAL] Update slf4j.version to v2 (major) - autoclosed

[mend-for-github-com[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.slf4j:slf4j-log4j12 (source)	1.7.12 -> 2.0.12
org.slf4j:slf4j-api (source)	1.7.12 -> 2.0.12

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