Distributed tracing

[gc-garcol]

• https://docs.micrometer.io/tracing/reference/api.html
• https://docs.micrometer.io/micrometer/reference/
  • https://docs.micrometer.io/micrometer/reference/observation/instrumenting.html#instrumentation_of_messaging_communication
• https://docs.spring.io/spring-boot/reference/actuator/tracing.html#actuator.micrometer-tracing.propagating-traces