Update monitoring packages to latest versions

- Updated all OpenTelemetry packages to latest versions:
  - opentelemetry-api: 1.27.0 → 1.39.1
  - opentelemetry-sdk: 1.27.0 → 1.39.1
  - opentelemetry-exporter-otlp-proto-grpc: 1.27.0 → 1.39.1
  - opentelemetry-exporter-otlp-proto-http: 1.27.0 → 1.39.1
  - opentelemetry-instrumentation-fastapi: 0.48b0 → 0.60b1
  - opentelemetry-instrumentation-httpx: 0.48b0 → 0.60b1
  - opentelemetry-instrumentation-redis: 0.48b0 → 0.60b1
  - opentelemetry-instrumentation-sqlalchemy: 0.48b0 → 0.60b1

- Removed prometheus-client==0.23.1 from all services
- Unified all services to use the same monitoring package versions

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

infrastructure/kubernetes/base/components/databases/postgres-template.yaml

@@ -19,6 +19,8 @@ spec:
         app.kubernetes.io/name: {{SERVICE_NAME}}-db
         app.kubernetes.io/component: database
     spec:
+      imagePullSecrets:
+      - name: dockerhub-creds
       containers:
       - name: postgres
         image: postgres:17-alpine
@@ -121,4 +123,4 @@ spec:
   - ReadWriteOnce
   resources:
     requests:
-      storage: 1Gi
+      storage: 1Gi