do not rebuild db if no new file

internal/services/db_updater/downloader.go

@@ -1,7 +1,6 @@
 package db_updater
 
 import (
-	"fmt"
 	"github.com/go-resty/resty/v2"
 	"github.com/rs/zerolog/log"
 	"net/http"
@@ -31,8 +30,13 @@ func download(url string) bool {
 
 	switch resp.StatusCode() {
 	case http.StatusNotModified:
-		fmt.Printf("No update needed: %v\n", resp.Status())
-		return true
+		log.Info().
+			Str("url", url).
+			Str("etag", etag).
+			Int("status_code", resp.StatusCode()).
+			Str("status", resp.Status()).
+			Msg("No update needed")
+		return false
 	case http.StatusOK:
 		_ = writeFileSByte(filename, resp.Body())
 		_ = writeFileString(filenameEtag, resp.Header().Get("Etag"))