Merge pull request #528 from stan-dev/gha-version

Specify version to install in GHA

Author: WardBrian

.github/workflows/main.yml

@@ -96,14 +96,14 @@ jobs:
         run: |
           install_cmdstan -h
           install_cxx_toolchain -h
-          python -m cmdstanpy.install_cmdstan
+          python -m cmdstanpy.install_cmdstan --version ${{ needs.get-cmdstan-version.outputs.version }}
 
       - name: Install CmdStan (Windows)
         if: matrix.os == 'windows-latest'
         run: |
           install_cmdstan -h
           install_cxx_toolchain -h
-          python -m cmdstanpy.install_cmdstan --compiler
+          python -m cmdstanpy.install_cmdstan --compiler --version ${{ needs.get-cmdstan-version.outputs.version }}
 
       - name: Run tests
         run: |