Replace windows-latest with windows-2022 in CI.

Author: vsajip

.github/workflows/python-package.yml

@@ -34,7 +34,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, macos-latest, windows-2022]
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.13t', '3.14', '3.14t', 'pypy-3.9']
 
     steps:
@@ -49,7 +49,7 @@ jobs:
         [Environment]::SetEnvironmentVariable("Path", $env:PATH, "Machine")
         choco install gnupg
         echo "C:\Program Files (x86)\GnuPG\bin" >> $env:GITHUB_PATH
-      if: ${{ matrix.os == 'windows-latest' }}
+      if: ${{ matrix.os == 'windows-2022' }}
     - name: Test with unittest
       run: |
         gpg --version