[chart] Update helm chart (#349)

deploy/helm/Chart.yaml

@@ -2,10 +2,10 @@ apiVersion: v2
 name: wg-portal
 description: WireGuard Configuration Portal with LDAP, OAuth, OIDC authentication
 # Version is set to ensure compatibility with the chart's Ingress resource.
-kubeVersion: '>=1.19.0'
+kubeVersion: ">=1.19.0"
 type: application
 home: https://wgportal.org
-icon: https://wgportal.org/assets/images/logo.svg
+icon: https://wgportal.org/latest/assets/images/logo.svg
 sources:
   - https://github.com/h44z/wg-portal
 
@@ -16,10 +16,10 @@ annotations:
 # 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: 0.5.0
+version: 0.6.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
 # It is recommended to use it with quotes.
-appVersion: latest
+appVersion: "v2"