Bump logback to most recent Java8-compatible version#2051

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absurdfarce wants to merge 3 commits intoapache:4.xfrom

absurdfarce:logback-updates

Commits on Aug 14, 2025

Bump logback to most recent Java8-compatible version
absurdfarce
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Commits on Aug 15, 2025

Have to update slf4j-api as well to address errors for missing class org.slf4j.spi.LoggingEventAware.
absurdfarce
committed

Commits on Aug 20, 2025

Add spifly to OSGi tests in order to make slf4j 2.x happy.
absurdfarce
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