update workflow to create and set zenml project for 0.80.0 compatibility

Author: marwan37

.github/workflows/staging_run_complete_llm.yml

@@ -45,6 +45,12 @@ jobs:
         run: |
           zenml init
 
+      - name: Create and set project if it doesn't exist
+        working-directory: ./llm-complete-guide
+        run: |
+          zenml project create llm-complete-guide --description "LLM Complete Guide project for the ZenML staging workflow"
+          zenml project set llm-complete-guide
+
       - name: Set stack (Staging)
         working-directory: ./llm-complete-guide
         run: |