Use Chocolatey to install just on Windows CI

Windows Server 2022 runners don't have winget by default,
but Chocolatey is pre-installed and can install just.

Signed-off-by: Drew Cain <groksrc@gmail.com>

Author: groksrc

.github/workflows/test.yml

@@ -44,8 +44,8 @@ jobs:
       - name: Install just (Windows)
         if: runner.os == 'Windows'
         run: |
-          # Install just using winget (Windows Package Manager)
-          winget install --id Casey.Just --exact --silent
+          # Install just using Chocolatey (pre-installed on GitHub Actions Windows runners)
+          choco install just --yes
         shell: pwsh
 
       - name: Create virtual env