bpo-43916: Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to selected types (GH-25748)

Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to the following types:

* _dbm.dbm
* _gdbm.gdbm
* _multibytecodec.MultibyteCodec
* _sre..SRE_Scanner
* _thread._localdummy
* _thread.lock
* _winapi.Overlapped
* array.arrayiterator
* functools.KeyWrapper
* functools._lru_list_elem
* pyexpat.xmlparser
* re.Match
* re.Pattern
* unicodedata.UCD
* zlib.Compress
* zlib.Decompress
diff --git a/Modules/zlibmodule.c b/Modules/zlibmodule.c
index 8a20dfc..fc63ca9 100644
--- a/Modules/zlibmodule.c
+++ b/Modules/zlibmodule.c
@@ -1386,11 +1386,10 @@ static PyType_Slot Comptype_slots[] = {
 };
 
 static PyType_Spec Comptype_spec = {
-    "zlib.Compress",
-    sizeof(compobject),
-    0,
-    Py_TPFLAGS_DEFAULT,
-    Comptype_slots
+    .name = "zlib.Compress",
+    .basicsize = sizeof(compobject),
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
+    .slots= Comptype_slots,
 };
 
 static PyType_Slot Decomptype_slots[] = {
@@ -1401,11 +1400,10 @@ static PyType_Slot Decomptype_slots[] = {
 };
 
 static PyType_Spec Decomptype_spec = {
-    "zlib.Decompress",
-    sizeof(compobject),
-    0,
-    Py_TPFLAGS_DEFAULT,
-    Decomptype_slots
+    .name = "zlib.Decompress",
+    .basicsize = sizeof(compobject),
+    .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
+    .slots = Decomptype_slots,
 };
 
 PyDoc_STRVAR(zlib_module_documentation,