Use new annotation style

src/sphinxcontrib/email/__init__.py

@@ -1,4 +1,6 @@
-from typing import Any, Dict
+from __future__ import annotations
+
+from typing import Any
 
 from sphinx.application import Sphinx
 from sphinx.util import logging
@@ -19,7 +21,7 @@
 logger = logging.getLogger("sphinxcontrib-email")
 
 
-def setup(app: Sphinx) -> Dict[str, Any]:
+def setup(app: Sphinx) -> dict[str, Any]:
     app.add_config_value(name="email_automode", default=False, rebuild="env")
     app.connect(event="html-page-context", callback=html_page_context_handler)
     app.add_role(name="email", role=EmailRole())

src/sphinxcontrib/email/handlers.py

@@ -1,4 +1,4 @@
-from typing import Dict
+from __future__ import annotations
 
 import lxml.html  # nosec  # noqa DUO107
 from sphinx.application import Sphinx
@@ -10,7 +10,7 @@
 
 
 def html_page_context_handler(
-    app: Sphinx, pagename: str, templatename: str, context: Dict, doctree: bool
+    app: Sphinx, pagename: str, templatename: str, context: dict, doctree: bool
 ):
     """Search html for 'mailto' links and obfuscate them"""
     if not app.config["email_automode"]:

src/sphinxcontrib/email/roles.py

@@ -1,5 +1,6 @@
+from __future__ import annotations
+
 import re
-from typing import List, Tuple
 
 from docutils import nodes
 from docutils.nodes import Node, system_message
@@ -12,7 +13,7 @@
 
 
 class EmailRole(SphinxRole):
-    def run(self) -> Tuple[List[Node], List[system_message]]:
+    def run(self) -> tuple[list[Node], list[system_message]]:
         """Role to obfuscate e-mail addresses.
 
         Handle addresses of the form

src/sphinxcontrib/email/utils.py

@@ -1,3 +1,5 @@
+from __future__ import annotations
+
 import re
 import textwrap
 import xml.sax.saxutils  # nosec