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/src/utils/parse-array-env-var.ts

@@ -0,0 +1,13 @@
+export const parseArrayEnvVar = <T>(
+  envVar: string | undefined,
+  expectedValues: T[],
+  defaultValues: T[],
+): T[] => {
+  if (!envVar) return defaultValues;
+
+  const values = envVar
+    .split(',')
+    .filter((item) => expectedValues.includes(item as T)) as T[];
+
+  return values.length > 0 ? values : defaultValues;
+};