[3.11] gh-108416: Mark slow but not CPU bound test methods with requires_resource('walltime') (GH-108480) (GH-108924)

(cherry picked from commit 1e0d62793a)

Lib/test/test_httplib.py

@@ -1911,6 +1911,7 @@ def test_networked_good_cert(self):
             h.close()
             self.assertIn('nginx', server_string)
 
+    @support.requires_resource('walltime')
     def test_networked_bad_cert(self):
         # We feed a "CA" cert that is unrelated to the server's cert
         import ssl