chore: use gofumpt for code formatting

internal/provider/ipvanish/updater/filename.go

@@ -12,7 +12,8 @@ import (
 var errCountryCodeUnknown = errors.New("country code is unknown")
 
 func parseFilename(fileName, hostname string, titleCaser cases.Caser) (
-	country, city string, err error) {
+	country, city string, err error,
+) {
 	const prefix = "ipvanish-"
 	s := strings.TrimPrefix(fileName, prefix)
 

internal/provider/ipvanish/updater/servers.go

@@ -14,7 +14,8 @@ import (
 )
 
 func (u *Updater) FetchServers(ctx context.Context, minServers int) (
-	servers []models.Server, err error) {
+	servers []models.Server, err error,
+) {
 	const url = "https://configs.ipvanish.com/configs/configs.zip"
 	contents, err := u.unzipper.FetchAndExtract(ctx, url)
 	if err != nil {

internal/provider/ipvanish/updater/updater.go

@@ -11,7 +11,8 @@ type Updater struct {
 }
 
 func New(unzipper common.Unzipper, warner common.Warner,
-	parallelResolver common.ParallelResolver) *Updater {
+	parallelResolver common.ParallelResolver,
+) *Updater {
 	return &Updater{
 		unzipper:         unzipper,
 		warner:           warner,