chore(sources/env): bump gosettings to v0.3.0-rc9

internal/configuration/sources/env/portforward.go

@@ -1,8 +1,6 @@
 package env
 
 import (
-	"fmt"
-
 	"github.com/qdm12/gluetun/internal/configuration/settings"
 	"github.com/qdm12/gosettings/sources/env"
 )
@@ -16,17 +14,14 @@ func (s *Source) readPortForward() (
 		})
 	portForwarding.Enabled, err = env.BoolPtr(key)
 	if err != nil {
-		return portForwarding, fmt.Errorf("environment variable %s: %w", key, err)
+		return portForwarding, err
 	}
 
-	_, value := s.getEnvWithRetro("VPN_PORT_FORWARDING_STATUS_FILE",
+	_, portForwarding.Filepath = s.getEnvWithRetro("VPN_PORT_FORWARDING_STATUS_FILE",
 		[]string{
 			"PRIVATE_INTERNET_ACCESS_VPN_PORT_FORWARDING_STATUS_FILE",
 			"PORT_FORWARDING_STATUS_FILE",
 		}, env.ForceLowercase(false))
-	if value != "" {
-		portForwarding.Filepath = ptrTo(value)
-	}
 
 	return portForwarding, nil
 }