set up metrics collecting with open telemetry (#11236)

Done :  
- move metrics and health cache services from health module to metrics
module
- refactor metrics counter from specific method to set up from enum keys
- add OpenTelemetry (Otel) instrumentation for metrics
- set up Otel SDK to send metrics to Otel collector

To do later : 
- implement Otel instrumentation for traces + plug Sentry on top

packages/twenty-server/.env.example

@@ -40,6 +40,7 @@ FRONTEND_URL=http://localhost:3001
 # LOGGER_DRIVER=console
 # LOGGER_IS_BUFFER_ENABLED=true
 # EXCEPTION_HANDLER_DRIVER=sentry
+# METER_DRIVER=opentelemetry,console
 # SENTRY_ENVIRONMENT=main
 # SENTRY_RELEASE=latest
 # SENTRY_DSN=https://xxx@xxx.ingest.sentry.io/xxx