Fix Spring Boot 4 Micrometer auto-configuration and add actuator metrics smoke coverage#4672

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xiang17 wants to merge 6 commits intomicrosoft:mainfrom

xiang17:xiang17/SpringBoot4-ActuatorMetrics

Commits on Apr 4, 2026

Created a new smoke test to validate Micrometer/ActuatorMetrics instrumentation for Spring Boot 4
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fixed the startup blocker: 1. adding module-local version forcing for Boot 4 logging so the test can reach the intended Micrometer failure path. 2. making one small adjustment so the app boots with…
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Fix the incompatible bug due to Spring Boot 4 metrics auto-config rename to org.springframework.boot.micrometer.metrics.autoconfigure.* (different module/package)
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Add additional JDK versions for the smoke tests
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Remove unused empty file
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./gradlew spotlessApply
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