4.0.0 org.springframework.boot spring-boot-starter-parent 4.1.1 com.ankurm observability 1.0.0 observability Micrometer to OpenTelemetry with spring-boot-starter-opentelemetry on Spring Boot 4.1: real OTLP export to a real Grafana LGTM stack, and the standard OTEL_* environment variables Boot 4.1 newly honors 25 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-actuator org.springframework.boot spring-boot-starter-opentelemetry org.springframework.boot spring-boot-docker-compose true org.springframework.boot spring-boot-starter-aspectj org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin