Update CI workflow to include additional Salesforce environment variables for authentication

Author: mitchspano

.github/workflows/CI.yml

@@ -42,6 +42,8 @@ jobs:
           sf org login jwt --client-id ${{ secrets.SALESFORCE_CONSUMER_KEY }} --jwt-key-file server.key --username ${{ secrets.SALESFORCE_DEVHUB_USERNAME}} --set-default-dev-hub --alias devhub
         env:
           SALESFORCE_JWT_SECRET_KEY: ${{ secrets.SALESFORCE_JWT_SECRET_KEY }}
+          SALESFORCE_CONSUMER_KEY: ${{ secrets.SALESFORCE_CONSUMER_KEY }}
+          SALESFORCE_DEVHUB_USERNAME: ${{ secrets.SALESFORCE_DEVHUB_USERNAME }}
 
       - name: Validate Contents in a Scratch Org
         run: |