chore: use gofumpt for code formatting

internal/provider/slickvpn/updater/servers.go

@@ -12,7 +12,8 @@ import (
 )
 
 func (u *Updater) FetchServers(ctx context.Context, minServers int) (
-	servers []models.Server, err error) {
+	servers []models.Server, err error,
+) {
 	hostToData, err := fetchServers(ctx, u.client)
 	if err != nil {
 		return nil, fmt.Errorf("fetching and parsing website: %w", err)

internal/provider/slickvpn/updater/updater.go

@@ -13,7 +13,8 @@ type Updater struct {
 }
 
 func New(client *http.Client, warner common.Warner,
-	parallelResolver common.ParallelResolver) *Updater {
+	parallelResolver common.ParallelResolver,
+) *Updater {
 	return &Updater{
 		client:           client,
 		parallelResolver: parallelResolver,

internal/provider/slickvpn/updater/website.go

@@ -12,7 +12,8 @@ import (
 )
 
 func fetchServers(ctx context.Context, client *http.Client) (
-	hostToData map[string]serverData, err error) {
+	hostToData map[string]serverData, err error,
+) {
 	const url = "https://www.slickvpn.com/locations/"
 	rootNode, err := htmlutils.Fetch(ctx, client, url)
 	if err != nil {
@@ -133,9 +134,7 @@ func matchA(cellNode *html.Node) (match bool) {
 
 var serverNameRegex = regexp.MustCompile(`^.+\/(?P<serverName>.+)\.ovpn$`)
 
-var (
-	ErrExtractHostnameFromURL = errors.New("cannot extract hostname from url")
-)
+var ErrExtractHostnameFromURL = errors.New("cannot extract hostname from url")
 
 func extractHostnameFromURL(url string) (hostname string, err error) {
 	matches := serverNameRegex.FindStringSubmatch(url)