[3.12] pythongh-138744: GitHub Actions: pin to windows-2022 (pythonGH-138743) (python#138754)

(cherry picked from commit 6e78a53)

Author: hugovk

.github/workflows/reusable-windows-msi.yml

@@ -17,7 +17,7 @@ env:
 jobs:
   build:
     name: installer for ${{ inputs.arch }}
-    runs-on: windows-latest
+    runs-on: windows-2022
     timeout-minutes: 60
     env:
       ARCH: ${{ inputs.arch }}

.github/workflows/reusable-windows.yml

@@ -21,7 +21,7 @@ env:
 jobs:
   build:
     name: ${{ inputs.arch == 'arm64' && 'build' || 'build and test' }} (${{ inputs.arch }})
-    runs-on: windows-latest
+    runs-on: windows-2022
     timeout-minutes: 60
     env:
       ARCH: ${{ inputs.arch }}