Use Chocolatey to install bzip2.dll for Windows tests in CI.

Author: hainesr

.github/workflows/tests.yml

@@ -29,9 +29,7 @@ jobs:
 
     - name: Install bzip2 library
       if: matrix.os == 'windows'
-      run: |
-        wget https://github.com/philr/bzip2-windows/releases/download/v1.0.8.0/bzip2-dll-1.0.8.0-win-x64.zip
-        Expand-Archive -Path bzip2-dll-1.0.8.0-win-x64.zip -DestinationPath C:\hostedtoolcache\windows\Ruby\${{ matrix.ruby }}\x64\bin
+      run: choco install bzip2
 
     - name: Run the tests
       env: