Prevent Windows 2022 being used for native-images
GraalVM doesn't have an SDK for Windows Server 2022 yet so the native
executable build fails if we catch an updated builder. Windows 2022 is
becoming the default for `windows-latest` "real soon now" so pin the
version in use to 2019.
More context at
@@ -27,7 +27,7 @@ jobs:
- dist: macos-latest
os_family: macOS
arch: amd64
- - dist: windows-latest
+ - dist: windows-2019
os_family: windows
arch: amd64
runs-on: ${{ matrix.dist }}
