Update cloudposse/github-action-setup-atmos action to v2 (#70)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

action.yml

@@ -79,7 +79,7 @@ runs:
         terraform_wrapper: false
 
     - name: Install Atmos
-      uses: cloudposse/github-action-setup-atmos@v1
+      uses: cloudposse/github-action-setup-atmos@v2
       with:
         atmos-version: ${{ steps.config.outputs.atmos-version }}
         token: ${{ inputs.token }}