Update CI from windows-2019 to windows-2022.

Author: sunfishcode

.github/workflows/main.yml

@@ -201,16 +201,16 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        build: [stable, windows-latest, windows-2019, macos-latest, macos-13, beta, ubuntu-22.04, aarch64-ubuntu]
+        build: [stable, windows-latest, windows-2022, macos-latest, macos-13, beta, ubuntu-22.04, aarch64-ubuntu]
         include:
           - build: stable
             os: ubuntu-latest
             rust: stable
           - build: windows-latest
             os: windows-latest
             rust: stable
-          - build: windows-2019
-            os: windows-2019
+          - build: windows-2022
+            os: windows-2022
             rust: stable
           - build: macos-latest
             os: macos-latest