Adding contion to the update environment step

.github/workflows/build-docs.yml

@@ -104,7 +104,7 @@ jobs:
 
       - name: Update environment
         run: mamba update -n tardis --file conda-linux-64.lock
-        if: steps.cache-conda.outputs.cache-hit != 'true'
+        if: steps.cache-conda.outputs.cache-hit != 'true' && (steps.docs_check.outcome == 'success' || steps.is_build_docs_label.outcome == 'success' || steps.is_workflow_dispatch.outcome == 'success')
 
       - name: Install package
         run: pip install -e .