all: sync with master

internal/stats/stats.go

@@ -384,7 +384,13 @@ func (s *StatsCtx) openDB() (err error) {
 	s.logger.Debug("opening database")
 
 	var db *bbolt.DB
-	db, err = bbolt.Open(s.filename, aghos.DefaultPermFile, nil)
+
+	opts := *bbolt.DefaultOptions
+	// Use the custom OpenFile function to properly handle access rights on
+	// Windows.
+	opts.OpenFile = aghos.OpenFile
+
+	db, err = bbolt.Open(s.filename, aghos.DefaultPermFile, &opts)
 	if err != nil {
 		if err.Error() == "invalid argument" {
 			const lines = `AdGuard Home cannot be initialized due to an incompatible file system.
@@ -467,7 +473,7 @@ func (s *StatsCtx) flushDB(id, limit uint32, ptr *unit) (cont bool, sleepFor tim
 	if delErr != nil {
 		// TODO(e.burkov):  Improve the algorithm of deleting the oldest bucket
 		// to avoid the error.
-		lvl := slog.LevelWarn
+		lvl := slog.LevelDebug
 		if !errors.Is(delErr, bbolt.ErrBucketNotFound) {
 			isCommitable = false
 			lvl = slog.LevelError