fix: refactor OpenTelemetry configuration by removing unused operators and restructuring metadata extraction

Signed-off-by: zhenyus <zhenyus@mathmast.com>

freeleaps/helm-pkg/authentication/templates/authentication/opentelemetry.yaml

@@ -15,23 +15,13 @@ spec:
         start_at: beginning
         include_file_path: true
         include_file_name: true
-        operators:
-          - type: json_parser
-            timestamp:
-              parse_from: record.time.timestamp
-              layout: unix_float
-          - type: move
-            from: record.level.name
-            to: severity
-          - type: move
-            from: record.message
-            to: message
     
     processors:
       k8sattributes:
         auth_type: "serviceAccount"
         passthrough: false
         extract:
+          metadata:
             - k8s.pod.name
             - k8s.pod.ip
             - k8s.pod.uid
@@ -46,6 +36,8 @@ spec:
           - sources:
               - from: resource_attribute
                 name: k8s.pod.uid
+          - sources:
+              - from: connection
       resource:
         attributes:
           - key: service.name