Add CI dependency

Author: winskuo-quic

.ci/scripts/test_model.sh

@@ -176,6 +176,8 @@ test_model_with_qnn() {
   export LD_LIBRARY_PATH=$QNN_SDK_ROOT/lib/x86_64-linux-clang/
   export PYTHONPATH=$EXECUTORCH_ROOT/..
 
+  pip install pydot
+
   EXTRA_FLAGS=""
   # Ordered by the folder name, then alphabetically by the model name
   # Following models are inside examples/qualcomm/scripts folder

.ci/scripts/test_qnn_static_llm.sh

@@ -35,6 +35,7 @@ fi
 which "${PYTHON_EXECUTABLE}"
 
 # Although static llama CI does not require graphviz, it is required by test_qnn_delegate.py
+pip install pydot
 pip install graphviz
 
 set +e