Update dependency org.slf4j:slf4j-log4j12 to v2 (hughtest)

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

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.slf4j:slf4j-log4j12 (source)	1.5.0 -> 2.0.16

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Release Notes

qos-ch/slf4j (org.slf4j:slf4j-log4j12)

### [`v1.5.11`](https://togithub.com/qos-ch/slf4j/compare/v1.5.10...v1.5.11) [Compare Source](https://togithub.com/qos-ch/slf4j/compare/v1.5.10...v1.5.11)

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