bpo-39573: Use Py_TYPE() macro in Modules directory (GH-18393)

Replace direct access to PyObject.ob_type with Py_TYPE().
diff --git a/Modules/_sqlite/microprotocols.c b/Modules/_sqlite/microprotocols.c
index 59a5e22..bdcb174 100644
--- a/Modules/_sqlite/microprotocols.c
+++ b/Modules/_sqlite/microprotocols.c
@@ -84,7 +84,7 @@
        way to get a quotable object to be its instance */
 
     /* look for an adapter in the registry */
-    key = Py_BuildValue("(OO)", (PyObject*)obj->ob_type, proto);
+    key = Py_BuildValue("(OO)", (PyObject*)Py_TYPE(obj), proto);
     if (!key) {
         return NULL;
     }