feat: add example implementation of OpenTelemetry SDK

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On the backend apps, create a tracing module imported before everything else in main.
Init OTel SDK with instrumentations library for the following modules:

• Net
• HTTP
• Fastify (if exists?)
• MongoDB
• BullMQ
• AMQP lib

Create a service in docker.compose with Jaeger to export traces to.

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depends on #19 to use opentelemetry-instrumentation-bullmq