Fix helm chart image version

Author: mjudeikis

deploy/charts/backend/templates/deployment.yaml

@@ -46,7 +46,7 @@ spec:
           securityContext:
             {{- toYaml . | nindent 12 }}
           {{- end }}
-          image: "{{ .Values.backend.image.repository }}:{{ .Values.backend.image.tag | default .Chart.AppVersion }}"
+          image: "{{ .Values.backend.image.repository }}:{{ .Values.backend.image.tag | default (printf "v%s" (.Chart.AppVersion | trimPrefix "v")) }}"
           imagePullPolicy: {{ .Values.backend.image.pullPolicy }}
           env:
           {{- if .Values.backend.oidc.clientSecretName }}