Update slf4j monorepo to v2.0.16

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.slf4j:slf4j-simple (source, changelog)	2.0.15 -> 2.0.16
org.slf4j:slf4j-api (source, changelog)	2.0.15 -> 2.0.16

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[coveralls]

coverage: 89.729%. remained the same when pulling 29e6044abdba2bc3d9f063cfeb778bca0a2fd7e4 on renovate/slf4j-monorepo into 34f880ce1e63ff5daf55ce0616894049c4fc581d on master.