[extractor] Allow extracting multiple groups in `_search_regex`

From #497, Authored by: fstirlitz

yt_dlp/extractor/common.py

@@ -1111,6 +1111,8 @@ def _search_regex(self, pattern, string, name, default=NO_DEFAULT, fatal=True, f
             if group is None:
                 # return the first matching group
                 return next(g for g in mobj.groups() if g is not None)
+            elif isinstance(group, (list, tuple)):
+                return tuple(mobj.group(g) for g in group)
             else:
                 return mobj.group(group)
         elif default is not NO_DEFAULT: