gh-94808: Add coverage for boolobject.c:bool_new (GH-94859) (GH-94883)

`bool_new` had no coverage.

Automerge-Triggered-By: GH:brandtbucher
(cherry picked from commit df4d53a)

Co-authored-by: Michael Droettboom <mdboom@gmail.com>

Co-authored-by: Michael Droettboom <mdboom@gmail.com>

Author: miss-islington

Lib/test/test_bool.py

@@ -369,6 +369,13 @@ def f(x):
         f(x)
         self.assertGreaterEqual(x.count, 1)
 
+    def test_bool_new(self):
+        self.assertIs(bool.__new__(bool), False)
+        self.assertIs(bool.__new__(bool, 1), True)
+        self.assertIs(bool.__new__(bool, 0), False)
+        self.assertIs(bool.__new__(bool, False), False)
+        self.assertIs(bool.__new__(bool, True), True)
+
 
 if __name__ == "__main__":
     unittest.main()