bpo-41861: Convert _sqlite3 PrepareProtocolType to heap type (GH-22428)

diff --git a/Modules/_sqlite/microprotocols.c b/Modules/_sqlite/microprotocols.c
index 3b2d7f4..64095ad 100644
--- a/Modules/_sqlite/microprotocols.c
+++ b/Modules/_sqlite/microprotocols.c
@@ -56,7 +56,7 @@
     PyObject* key;
     int rc;
 
-    if (proto == NULL) proto = (PyObject*)&pysqlite_PrepareProtocolType;
+    if (proto == NULL) proto = (PyObject*)pysqlite_PrepareProtocolType;
 
     key = Py_BuildValue("(OO)", (PyObject*)type, proto);
     if (!key) {
@@ -152,7 +152,7 @@
 pysqlite_adapt(pysqlite_Cursor *self, PyObject *args)
 {
     PyObject *obj, *alt = NULL;
-    PyObject *proto = (PyObject*)&pysqlite_PrepareProtocolType;
+    PyObject *proto = (PyObject*)pysqlite_PrepareProtocolType;
 
     if (!PyArg_ParseTuple(args, "O|OO", &obj, &proto, &alt)) return NULL;
     return pysqlite_microprotocols_adapt(obj, proto, alt);