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/notification/notification-service.yaml

@@ -19,6 +19,8 @@ spec:
         app.kubernetes.io/name: notification-service
         app.kubernetes.io/component: microservice
     spec:
+      imagePullSecrets:
+      - name: dockerhub-creds
       initContainers:
       # Wait for Redis to be ready
       - name: wait-for-redis
@@ -92,6 +94,26 @@ spec:
         ports:
         - containerPort: 8000
           name: http
+        env:
+        # OpenTelemetry Configuration
+        - name: OTEL_COLLECTOR_ENDPOINT
+          value: "http://signoz-otel-collector.signoz.svc.cluster.local:4318"
+        - name: OTEL_EXPORTER_OTLP_ENDPOINT
+          value: "http://signoz-otel-collector.signoz.svc.cluster.local:4318"
+        - name: OTEL_SERVICE_NAME
+          value: "notification-service"
+        - name: ENABLE_TRACING
+          value: "true"
+        # Logging Configuration
+        - name: OTEL_LOGS_EXPORTER
+          value: "otlp"
+        - name: OTEL_PYTHON_LOGGING_AUTO_INSTRUMENTATION_ENABLED
+          value: "true"
+        # Metrics Configuration
+        - name: ENABLE_OTEL_METRICS
+          value: "true"
+        - name: ENABLE_SYSTEM_METRICS
+          value: "true"
         envFrom:
         - configMapRef:
             name: bakery-config