Refactor vllm openvino to third parties (#1388)

vllm-openvino is a dependency for text generation comps, in GenAIComps PR opea-project/GenAIComps#1141 we move it to third-parties folder, update the path accordingly.

#998 
Signed-off-by: Xinyao Wang <xinyao.wang@intel.com>

Author: XinyaoWa

EdgeCraftRAG/tests/test_compose_vllm_on_arc.sh

@@ -39,7 +39,7 @@ function build_docker_images() {
 
     echo "Build vllm_openvino image from GenAIComps..."
     cd $WORKPATH && git clone https://github.com/opea-project/GenAIComps.git && cd GenAIComps && git checkout "${opea_branch:-"main"}"
-    cd comps/llms/text-generation/vllm/langchain/dependency
+    cd comps/third_parties/vllm/src/
     bash ./build_docker_vllm_openvino.sh gpu
 
     docker images && sleep 1s