Set otel error handler in main_windows.go (#1025)

Author: avilevy18

cmd/google_cloud_ops_agent_diagnostics/main_windows.go

@@ -23,6 +23,7 @@ import (
 	"os"
 
 	"github.com/GoogleCloudPlatform/ops-agent/internal/self_metrics"
+	"go.opentelemetry.io/otel"
 	"golang.org/x/sys/windows/svc"
 	"golang.org/x/sys/windows/svc/debug"
 	"golang.org/x/sys/windows/svc/eventlog"
@@ -41,6 +42,10 @@ type service struct {
 	userConf string
 }
 
+func (s *service) Handle(err error) {
+	s.log.Error(eventID, fmt.Sprintf("error collecting metrics: %v", err))
+}
+
 func run() error {
 	name := "google-cloud-ops-agent-diagnostics"
 	elog, err := eventlog.Open(name)
@@ -100,6 +105,9 @@ func (s *service) Execute(args []string, r <-chan svc.ChangeRequest, changes cha
 		}
 	}()
 
+	// Set otel error handler
+	otel.SetErrorHandler(s)
+
 	err = self_metrics.CollectOpsAgentSelfMetrics(&userUc, &mergedUc, death)
 	if err != nil {
 		s.log.Error(eventID, fmt.Sprintf("failed to collect ops agent self metrics: %v", err))