build: update caffeine from 2.9.3 to 3.0.6

[scala-steward]

Updates com.github.ben-manes.caffeine:caffeine from 2.9.3 to 3.0.6. GitHub Release Notes - Version Diff

I'll automatically update this PR to resolve conflicts as long as you don't change it yourself.

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labels: library-update, early-semver-major, semver-spec-major, commit-count:1

[raboof]

Caffeine 3.x is incompatible with 2.x (though at first glance the differences seem small, https://github.com/ben-manes/caffeine/releases/tag/v3.0.0), perhaps we should postpone that update to Akka HTTP 10.3.x?

[He-Pin]

Can only update when drop java 11.

[He-Pin]

@raboof @jrudolph can pin on the 2.9.x version. https://github.com/akka/akka-http/pull/4083

[ihostage]

Can only update when drop java 11.

@He-Pin Did you mean drop Java 8? Caffeine 3 support Java 11+.

For Java 11 or above, use 3.1.x otherwise use 2.9.x.

©https://github.com/ben-manes/caffeine

[jrudolph]

Can only update when drop java 11.

Good to know, thanks. Let's revisit when we decide if we keep supporting Java 8 on 10.3.x.