fix(helm): update appVersion format and improve image tag handling

Signed-off-by: Noste <83548733+Noooste@users.noreply.github.com>

helm/garage-ui/Chart.yaml

@@ -4,7 +4,7 @@ description: A Helm chart for Garage UI - Web interface for Garage S3 object sto
 icon: https://helm.noste.dev/garage.png
 type: application
 version: 0.4.1
-appVersion: 0.6.1
+appVersion: v0.6.1 # x-release-please-version
 keywords:
   - garage
   - s3

helm/garage-ui/templates/deployment.yaml

@@ -30,7 +30,7 @@ spec:
       - name: {{ .Chart.Name }}
         securityContext:
           {{- toYaml .Values.securityContext | nindent 12 }}
-        image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default (ternary .Chart.AppVersion (printf "v%s" .Chart.AppVersion) (hasPrefix "v" .Chart.AppVersion)) }}"
+        image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
         imagePullPolicy: {{ .Values.image.pullPolicy }}
         ports:
         - name: http