feat(helm): add ability for --dry-run to do lookup functions

When a helm command is run with the --dry-run flag, it will try to connect to the cluster
if the value is 'server' to be able to render lookup functions.
Closes #8137

Signed-off-by: Tapas Kapadia <tapaskapadia10@gmail.com>

cmd/helm/install.go

@@ -320,6 +320,6 @@ func validateDryRunFlag(dryRunFlagValue string) error {
 	}
 	if !isAllowed {
 		return errors.New("Invalid dry-run flag. Flag must one of the following: false, true, none, client, sever")
-	} 
+	}
 	return nil
 }