Update slf4j monorepo to v2.0.15

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.slf4j:slf4j-simple (source, changelog)	2.0.14 -> 2.0.15
org.slf4j:slf4j-api (source, changelog)	2.0.14 -> 2.0.15

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Configuration

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[coveralls]

Pull Request Test Coverage Report for Build #163

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 35.983%

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Totals
Change from base Build #162:	0.0%
Covered Lines:	656
Relevant Lines:	1827

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💛 - Coveralls