Add alias for postgres dependency in Chart.yaml

Signed-off-by: Viet Nguyen Duc <nguyenducviet4496@gmail.com>

Author: VietND96

charts/selenium-grid/Chart.yaml

@@ -25,6 +25,7 @@ dependencies:
 - repository: https://cloudpirates-io.github.io/helm-charts
   version: ^0.19.0
   name: postgres
+  alias: postgresql
   condition: postgresql.enabled
 - repository: https://cloudpirates-io.github.io/helm-charts
   version: ^0.30.0