updating to use env

.github/workflows/build.yml

@@ -11,6 +11,8 @@ jobs:
     #is to first start up a Virtual Machine, then we can by following:
     # https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idcontainer
     runs-on: ubuntu-latest
+    env:
+      CONTENTCTL_VERSION: ${{ vars.CONTENTCTL_VERSION }}  # Use the environment variable
     steps:
       - name: Check out the repository code
         uses: actions/checkout@v4
@@ -23,7 +25,8 @@ jobs:
 
       - name: Install Python Dependencies and ContentCTL and Atomic Red Team
         run: |
-          pip install contentctl==4.2.2
+          echo "CONTENTCTL_VERSION is set to ${{ env.CONTENTCTL_VERSION }}"
+          pip install contentctl==${{ env.CONTENTCTL_VERSION }}
           git clone --depth=1 --single-branch --branch=master https://github.com/redcanaryco/atomic-red-team.git
       
       - name: Running build with enrichments