chore: use gofumpt for code formatting

internal/provider/protonvpn/updater/api.go

@@ -9,9 +9,7 @@ import (
 	"net/netip"
 )
 
-var (
-	ErrHTTPStatusCodeNotOK = errors.New("HTTP status code not OK")
-)
+var ErrHTTPStatusCodeNotOK = errors.New("HTTP status code not OK")
 
 type apiData struct {
 	LogicalServers []logicalServer `json:"LogicalServers"`
@@ -36,7 +34,8 @@ type physicalServer struct {
 }
 
 func fetchAPI(ctx context.Context, client *http.Client) (
-	data apiData, err error) {
+	data apiData, err error,
+) {
 	const url = "https://api.protonmail.ch/vpn/logicals"
 
 	request, err := http.NewRequestWithContext(ctx, http.MethodGet, url, nil)

internal/provider/protonvpn/updater/countries.go

@@ -3,7 +3,8 @@ package updater
 import "strings"
 
 func codeToCountry(countryCode string, countryCodes map[string]string) (
-	country string, warning string) {
+	country string, warning string,
+) {
 	countryCode = strings.ToLower(countryCode)
 	country, ok := countryCodes[countryCode]
 	if !ok {

internal/provider/protonvpn/updater/iptoserver.go

@@ -17,7 +17,8 @@ type features struct {
 }
 
 func (its ipToServers) add(country, region, city, name, hostname, wgPubKey string,
-	free bool, entryIP netip.Addr, features features) {
+	free bool, entryIP netip.Addr, features features,
+) {
 	key := entryIP.String()
 
 	servers, ok := its[key]

internal/provider/protonvpn/updater/servers.go

@@ -11,7 +11,8 @@ import (
 )
 
 func (u *Updater) FetchServers(ctx context.Context, minServers int) (
-	servers []models.Server, err error) {
+	servers []models.Server, err error,
+) {
 	data, err := fetchAPI(ctx, u.client)
 	if err != nil {
 		return nil, err