Use an earlier version of the Windows toolchain since the latest swift.org development release doesn't include the _GUID fix

Author: sundresh

.github/workflows/build.yml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - swift_development_build: DEVELOPMENT-SNAPSHOT-2025-11-03-a
+          - swift_development_build: DEVELOPMENT-SNAPSHOT-2025-10-02-a
             options: -Xswiftc "-I${env:SDKROOT}\..\..\..\..\..\..\Toolchains\0.0.0+Asserts\usr\include"
 
     name: SPM (Windows) - Swift ${{ matrix.swift_release_tag_name }}
@@ -48,7 +48,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - swift_development_build: DEVELOPMENT-SNAPSHOT-2025-11-03-a
+          - swift_development_build: DEVELOPMENT-SNAPSHOT-2025-10-02-a
             options: -I${env:SDKROOT}\..\..\..\..\..\..\Toolchains\0.0.0+Asserts\usr\include
 
     name: CMake (Windows) - Swift ${{ matrix.swift_release_tag_name }}