Use PEP 585 syntax wherever possible (#6717)

stubs/html5lib/html5lib/_tokenizer.pyi

@@ -1,10 +1,10 @@
 import sys
 from collections import OrderedDict
-from typing import Any, Dict
+from typing import Any
 
 entitiesTrie: Any
 if sys.version_info >= (3, 7):
-    attributeMap = Dict[Any, Any]
+    attributeMap = dict[Any, Any]
 else:
     attributeMap = OrderedDict[Any, Any]
 

stubs/html5lib/html5lib/_utils.pyi

@@ -1,9 +1,9 @@
 from collections.abc import Mapping
-from typing import Any, Dict
+from typing import Any
 
 supports_lone_surrogates: bool
 
-class MethodDispatcher(Dict[Any, Any]):
+class MethodDispatcher(dict[Any, Any]):
     default: Any
     def __init__(self, items=...) -> None: ...
     def __getitem__(self, key): ...

stubs/html5lib/html5lib/treebuilders/base.pyi

@@ -1,4 +1,4 @@
-from typing import Any, List
+from typing import Any
 
 Marker: Any
 listElementsMap: Any
@@ -18,7 +18,7 @@ class Node:
     def cloneNode(self) -> None: ...
     def hasContent(self) -> None: ...
 
-class ActiveFormattingElements(List[Any]):
+class ActiveFormattingElements(list[Any]):
     def append(self, node) -> None: ...
     def nodesEqual(self, node1, node2): ...