updater: refactoring and set DNS server correctly

- Fix CLI operation not setting DNS server
- Fix periodic operation not setting DNS server
- Set DNS address for resolution once at start for both CLI and periodic operation
- Inject resolver to each provider instead of creating it within
- Use resolver settings on every call to `.Resolve` method, instead of passing it to constructor
- Move out minServers check from resolver

internal/provider/cyberghost/updater/updater.go

@@ -8,8 +8,8 @@ type Updater struct {
 	presolver common.ParallelResolver
 }
 
-func New() *Updater {
+func New(parallelResolver common.ParallelResolver) *Updater {
 	return &Updater{
-		presolver: newParallelResolver(),
+		presolver: parallelResolver,
 	}
 }