chore(config): use openvpn protocol string field instead of TCP bool

internal/provider/wevpn/connection_test.go

@@ -22,7 +22,6 @@ func Test_Provider_GetConnection(t *testing.T) {
 	const provider = providers.Wevpn
 
 	errTest := errors.New("test error")
-	boolPtr := func(b bool) *bool { return &b }
 
 	testCases := map[string]struct {
 		filteredServers []models.Server
@@ -45,7 +44,7 @@ func Test_Provider_GetConnection(t *testing.T) {
 			},
 			selection: settings.ServerSelection{
 				OpenVPN: settings.OpenVPNSelection{
-					TCP: boolPtr(true),
+					Protocol: constants.TCP,
 				},
 			}.WithDefaults(provider),
 			connection: models.Connection{
@@ -61,7 +60,7 @@ func Test_Provider_GetConnection(t *testing.T) {
 			},
 			selection: settings.ServerSelection{
 				OpenVPN: settings.OpenVPNSelection{
-					TCP: boolPtr(false),
+					Protocol: constants.UDP,
 				},
 			}.WithDefaults(provider),
 			connection: models.Connection{