Fix error in edit_version workflow

Author: EvieePy

.github/workflows/edit_version.py

@@ -10,7 +10,7 @@
 with open("../../twitchio/__init__.py", "r+") as fp:
     data = fp.read()
 
-    data = re.sub(r"__version__ = \"\d+.\d+.\d+\"", f'__version__ = "{args["latest"].removeprefix("v")}"', data)
+    data = re.sub(r"__version__ = \"\d+.\d+.\d+\"", f'__version__ = "{args.latest.removeprefix("v")}"', data)
 
     fp.seek(0)
     fp.write(data)