chore: fix mypy error

Author: jorwoods

test/_utils.py

@@ -33,7 +33,7 @@ def server_response_error_factory(code: str, summary: str, detail: str) -> str:
     return ET.tostring(root, encoding="utf-8").decode("utf-8")
 
 
-def server_response_factory(tag: str, **attributes: str | bool | int | None) -> bytes:
+def server_response_factory(tag: str, **attributes: str) -> bytes:
     ns = "http://tableau.com/api"
     ET.register_namespace("", ns)
     root = ET.Element(
@@ -42,7 +42,7 @@ def server_response_factory(tag: str, **attributes: str | bool | int | None) ->
     if attributes is None:
         attributes = {}
 
-    elem = ET.SubElement(root, f"{{{ns}}}{tag}", **attributes)
+    elem = ET.SubElement(root, f"{{{ns}}}{tag}", attrib=attributes)
     return ET.tostring(root, encoding="utf-8")