bugfix in update build env (outputs.snapshot-tag)

Author: trevorcampbell

.github/workflows/update_build_environment.yml

@@ -30,8 +30,7 @@ jobs:
         git config --local user.email "[email protected]"
         git config --local user.name "GitHub Action"
         git pull origin dev
-        echo "USING TAG ${{ steps.rebuild.snapshot-tag }}"
-        sed 's/ubcdsci\/py-intro-to-ds:[[:alnum:]]\+/ubcdsci\/py-intro-to-ds:${{ steps.rebuild.snapshot-tag }}/g' build_html.sh > build_html.tmp && mv build_html.tmp build_html.sh
+        sed 's/ubcdsci\/py-intro-to-ds:[[:alnum:]]\+/ubcdsci\/py-intro-to-ds:${{ steps.rebuild.outputs.snapshot-tag }}/g' build_html.sh > build_html.tmp && mv build_html.tmp build_html.sh
         git add build_html.sh
         git commit -m "update build_html.sh script with new docker image"
     - name: Push changes to build scripts