Enable Ruff flake8-pie (PIE) (#13747)

pyproject.toml

@@ -53,6 +53,7 @@ select = [
     "I", # isort
     "N", # pep8-naming
     "PGH", # pygrep-hooks
+    "PIE", # flake8-pie
     "PL", # Pylint
     "RUF", # Ruff-specific and unused-noqa
     "TRY", # tryceratops

stdlib/tkinter/__init__.pyi

@@ -265,7 +265,7 @@ else:
         GraphicsExpose = "13"
         Gravity = "24"
         KeyPress = "2"
-        Key = "2"
+        Key = KeyPress
         KeyRelease = "3"
         Keymap = "11"
         Leave = "8"