[Github] Make premerge update correct comments file for Windows

platform.machine() on x86_64 on Windows returns AMD64 rather than
x86_64. Make premerge.yaml reflect this.

Author: boomanaiden154

.github/workflows/premerge.yaml

@@ -191,7 +191,7 @@ jobs:
         with:
           name: workflow-args-windows
           path: |
-            comments-Windows-x86_64
+            comments-Windows-AMD64
 
   premerge-check-macos:
     name: MacOS Premerge Checks