Bump helm chart to v0.4.0

Signed-off-by: Caleb Schoepp <caleb.schoepp@fermyon.com>

charts/spin-operator/Chart.yaml

@@ -14,10 +14,10 @@ type: application
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
 # NOTE: this version is kept static in version control but is bumped when packaging and releasing
-version: 0.3.0
+version: 0.4.0
 # 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.
 # NOTE: this version is kept static in version control but is bumped when packaging and releasing
-appVersion: "v0.3.0"
+appVersion: "v0.4.0"