closes bpo-43011: Fix DeprecationWarnings in test_ctypes (GH-24305)

(cherry picked from commit f7fa64f)

Co-authored-by: Zackery Spytz <[email protected]>

Author: miss-islington

Lib/ctypes/test/test_parameters.py

@@ -240,8 +240,8 @@ def test_parameter_repr(self):
         self.assertEqual(repr(c_double.from_param(1.5)), "<cparam 'd' (1.5)>")
         self.assertEqual(repr(c_double.from_param(1e300)), "<cparam 'd' (1e+300)>")
         self.assertRegex(repr(c_longdouble.from_param(1.5)), r"^<cparam ('d' \(1.5\)|'g' at 0x[A-Fa-f0-9]+)>$")
-        self.assertRegex(repr(c_char_p.from_param(b'hihi')), "^<cparam 'z' \(0x[A-Fa-f0-9]+\)>$")
-        self.assertRegex(repr(c_wchar_p.from_param('hihi')), "^<cparam 'Z' \(0x[A-Fa-f0-9]+\)>$")
+        self.assertRegex(repr(c_char_p.from_param(b'hihi')), r"^<cparam 'z' \(0x[A-Fa-f0-9]+\)>$")
+        self.assertRegex(repr(c_wchar_p.from_param('hihi')), r"^<cparam 'Z' \(0x[A-Fa-f0-9]+\)>$")
         self.assertRegex(repr(c_void_p.from_param(0x12)), r"^<cparam 'P' \(0x0*12\)>$")
 
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