[brightcove] Order imports alphabetically

youtube_dl/extractor/brightcove.py

@@ -20,12 +20,12 @@ from ..utils import (
     ExtractorError,
     find_xpath_attr,
     fix_xml_ampersands,
-    unescapeHTML,
-    unsmuggle_url,
-    js_to_json,
     float_or_none,
+    js_to_json,
     int_or_none,
     parse_iso8601,
+    unescapeHTML,
+    unsmuggle_url,
 )