[bunkr] fix file downloads (#7747)

update 'root_dl', 'root_api', and default 'endpoint'

gallery_dl/extractor/bunkr.py

@@ -61,6 +61,7 @@ class BunkrAlbumExtractor(LolisafeAlbumExtractor):
     category = "bunkr"
     root = "https://bunkr.si"
     root_dl = "https://get.bunkrr.su"
+    root_api = "https://apidl.bunkr.ru"
     archive_fmt = "{album_id}_{id|id_url}"
     pattern = BASE_PATTERN + r"/a/([^/?#]+)"
     example = "https://bunkr.si/a/ID"
@@ -76,9 +77,9 @@ class BunkrAlbumExtractor(LolisafeAlbumExtractor):
 
         endpoint = self.config("endpoint")
         if not endpoint:
-            endpoint = self.root_dl + "/api/_001"
+            endpoint = self.root_api + "/api/_001_v2"
         elif endpoint[0] == "/":
-            endpoint = self.root_dl + endpoint
+            endpoint = self.root_api + endpoint
 
         self.endpoint = endpoint
         self.offset = 0