Update actions/setup-java action to v5.6.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/setup-java	action	minor	v5.5.0 → v5.6.0

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Release Notes

actions/setup-java (actions/setup-java)

v5.6.0

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What's Changed

• Backport to v5: Add Maven compiler problem matcher for javac diagnostics by @​brunoborges in #​1087
• feat: expose cache-primary-key output (#​597) [v5 backport] by @​brunoborges in #​1089
• dist: Cover Tencent Kona JDK 25 (#​1108) [v5 backport] by @​brunoborges in #​1110
• Backport #​1111: Preserve Maven toolchains across repeated setup-java runs (#​1099) by @​brunoborges in #​1113
• Backport #​1097/#​1098 to v5: cache Maven and Gradle wrapper distributions separately by @​brunoborges in #​1122

Full Changelog: actions/setup-java@v5...v5.6.0

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