chore(updater): rename presolver to parallelResolver

internal/provider/wevpn/updater/servers.go

@@ -32,7 +32,7 @@ func (u *Updater) FetchServers(ctx context.Context, minServers int) (
 	}
 
 	resolverSettings := parallelResolverSettings(hostnames)
-	hostnameToIPs, warnings, err := u.presolver.Resolve(ctx, resolverSettings)
+	hostnameToIPs, warnings, err := u.parallelResolver.Resolve(ctx, resolverSettings)
 	for _, warning := range warnings {
 		u.warner.Warn(warning)
 	}

internal/provider/wevpn/updater/updater.go

@@ -3,13 +3,13 @@ package updater
 import "github.com/qdm12/gluetun/internal/provider/common"
 
 type Updater struct {
-	presolver common.ParallelResolver
-	warner    common.Warner
+	parallelResolver common.ParallelResolver
+	warner           common.Warner
 }
 
 func New(warner common.Warner, parallelResolver common.ParallelResolver) *Updater {
 	return &Updater{
-		presolver: parallelResolver,
-		warner:    warner,
+		parallelResolver: parallelResolver,
+		warner:           warner,
 	}
 }