feat: update schemas and appVersion for GGScout v0.19.0

- Fetch schemas from GGScout version v0.19.0
- Update bundled values.schema.json
- Update Chart.yaml appVersion

Author: github-actions[bot]

charts/ggscout/Chart.yaml

@@ -19,4 +19,4 @@ version: 0.5.7
 # 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: "0.18.4"
+appVersion: "0.19.0"