Introduce job duration update task

internal/taskManager/taskManager.go

@@ -80,6 +80,7 @@ func Start() {
 	}
 
 	RegisterFootprintWorker()
+	RegisterUpdateDurationWorker()
 
 	s.Start()
 }

internal/taskManager/updateDurationService.go

@@ -0,0 +1,26 @@
+// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
+// All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+package taskManager
+
+import (
+	"time"
+
+	"github.com/ClusterCockpit/cc-backend/pkg/log"
+	"github.com/go-co-op/gocron/v2"
+)
+
+func RegisterUpdateDurationWorker() {
+	log.Info("Register duration update service")
+
+	d, _ := time.ParseDuration("5m")
+	s.NewJob(gocron.DurationJob(d),
+		gocron.NewTask(
+			func() {
+				start := time.Now()
+				log.Printf("Update duration started at %s", start.Format(time.RFC3339))
+				jobRepo.UpdateDuration()
+				log.Print("Update duration is done and took %s", time.Since(start))
+			}))
+}