feat(fastestvpn): update servers data using API instead of zip file

- Add city filter
- More dynamic to servers updates on fastestvpn's end
- Update servers data

internal/provider/fastestvpn/updater/updater.go

@@ -1,19 +1,21 @@
 package updater
 
 import (
+	"net/http"
+
 	"github.com/qdm12/gluetun/internal/provider/common"
 )
 
 type Updater struct {
-	unzipper         common.Unzipper
+	client           *http.Client
 	parallelResolver common.ParallelResolver
 	warner           common.Warner
 }
 
-func New(unzipper common.Unzipper, warner common.Warner,
+func New(client *http.Client, warner common.Warner,
 	parallelResolver common.ParallelResolver) *Updater {
 	return &Updater{
-		unzipper:         unzipper,
+		client:           client,
 		parallelResolver: parallelResolver,
 		warner:           warner,
 	}