fix ci; specify flash-attn version

Author: YeAnbang

.github/workflows/run_chatgpt_examples.yml

@@ -47,9 +47,9 @@ jobs:
         run: |
           pip install flash-attn==2.7.4.post1 --no-build-isolation
 
-      - name: Install Transformers
-        run: |
-          pip install --no-cache-dir transformers==4.36.2
+      # - name: Install Transformers
+      #   run: |
+      #     pip install --no-cache-dir transformers==4.36.2
 
       - name: Execute Examples
         run: |