fix library

Author: winskuo-quic

.ci/scripts/test_qnn_static_llama.sh

@@ -13,6 +13,9 @@ fi
 
 which "${PYTHON_EXECUTABLE}"
 
+# Although static llama CI does not require graphviz, it is required by test_qnn_delegate.py
+pip install graphviz
+
 source "$(dirname "${BASH_SOURCE[0]}")/utils.sh"
 # Download stories llama110m artifacts
 download_stories_model_artifacts