[dt] replace 'text.parse_datetime()' & 'text.parse_timestamp()'

gallery_dl/extractor/schalenetwork.py

@@ -126,7 +126,7 @@ class SchalenetworkGalleryExtractor(SchalenetworkExtractor, GalleryExtractor):
         data = self.request_json(url, headers=headers)
 
         try:
-            data["date"] = text.parse_timestamp(data["created_at"] // 1000)
+            data["date"] = self.parse_timestamp(data["created_at"] // 1000)
             data["count"] = len(data["thumbnails"]["entries"])
             del data["thumbnails"]
         except Exception: