fix: cron backofflimit zero value (#136)

Author: AmanGIT07

stable/app/Chart.yaml

@@ -15,4 +15,4 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.10.0
+version: 0.10.1

stable/app/templates/cron.yaml

@@ -15,7 +15,7 @@ spec:
   schedule: {{ $job.schedule | quote }}
   jobTemplate:
     spec:
-      backoffLimit: {{ $job.backoffLimit | default 4 }}
+      backoffLimit: {{ if hasKey $job "backoffLimit" }}{{ $job.backoffLimit }}{{ else }}4{{ end }}
       template:
         metadata:
           annotations: