bpo-36511: Add buildbot scripts and fix tests for Windows ARM32 buildbot (GH-13454)

diff --git a/Lib/test/test_pyexpat.py b/Lib/test/test_pyexpat.py
index 92fffc4..082d85a 100644
--- a/Lib/test/test_pyexpat.py
+++ b/Lib/test/test_pyexpat.py
@@ -3,6 +3,7 @@
 
 from io import BytesIO
 import os
+import platform
 import sys
 import sysconfig
 import unittest
@@ -465,7 +466,7 @@
                                        "pyexpat.c", "StartElement")
             self.check_traceback_entry(entries[2],
                                        "test_pyexpat.py", "StartElementHandler")
-            if sysconfig.is_python_build():
+            if sysconfig.is_python_build() and not (sys.platform == 'win32' and platform.machine() == 'ARM'):
                 self.assertIn('call_with_frame("StartElement"', entries[1][3])