markdown: Add missing attribute to Markdown stub. (#5544)

* markdown: Add missing attribute to Markdown stub.

* markdown: Add * to mark rest of arguments as keyword-only.

* markdown: Add **options

stubs/Markdown/markdown/extensions/codehilite.pyi

@@ -1,4 +1,4 @@
-from typing import Any, Optional
+from typing import Any, Dict, Optional
 
 from markdown.extensions import Extension
 from markdown.treeprocessors import Treeprocessor
@@ -18,9 +18,11 @@ class CodeHilite:
     tab_length: Any
     hl_lines: Any
     use_pygments: Any
+    options: Dict[str, Any]
     def __init__(
         self,
         src: Optional[Any] = ...,
+        *,
         linenums: Optional[Any] = ...,
         guess_lang: bool = ...,
         css_class: str = ...,
@@ -30,6 +32,7 @@ class CodeHilite:
         tab_length: int = ...,
         hl_lines: Optional[Any] = ...,
         use_pygments: bool = ...,
+        **options: Any,
     ) -> None: ...
     def hilite(self): ...