Version 0.4.0

Changes:
- put ObservabilityMiddleware before ExceptionHandlerMiddleware to avoid repetative code
- add application startup and last metrics update metrics along with CPU usage metric and threads count
- move host and port to new uvicorn section at config along with new reload and forwarded_allow_ips
- add request_id and remove trace_id/span_id generation if tracing is disabled
- move logging logic from utils to observability
- pass trace_id/span_id in HEX form

deploy/docker-compose.yaml.jinja

@@ -143,6 +143,7 @@ services:
   opensearch:
     image: opensearchproject/opensearch:3.3.0@sha256:d96afaf6cbd2a6a3695aeb2f1d48c9a16ad5c8918eb849e5cbf43475f0f8e146
     container_name: opensearch
+    restart: unless-stopped
     environment:
       - discovery.type=single-node
       - plugins.security.disabled=true