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

gallery_dl/extractor/sankaku.py

@@ -67,7 +67,7 @@ class SankakuExtractor(BooruExtractor):
 
     def _prepare(self, post):
         post["created_at"] = post["created_at"]["s"]
-        post["date"] = text.parse_timestamp(post["created_at"])
+        post["date"] = self.parse_timestamp(post["created_at"])
         post["tags"] = post.pop("tag_names", ())
         post["tag_string"] = " ".join(post["tags"])
         post["_http_validate"] = self._check_expired