feat(unleash): db - username and password, not url to connect

Handling special characters in postgres database urls can be challenging. Using username and password directly is easier. I have tested this with the password 'unl:e@sh:444'

charts/unleash/Chart.yaml

@@ -15,4 +15,4 @@ sources:
   - https://github.com/Unleash/unleash
   - https://github.com/Unleash/helm-charts
 type: application
-version: 4.0.0
+version: 4.0.1