Chore/Accept Dynamic Variable From Metadata Filter (#5203)

* add acceptVariable property to vector store metadata filter

* add accepVariadd acceptVariable property to other json fields

packages/components/nodes/vectorstores/Milvus/Milvus.ts

@@ -100,7 +100,8 @@ class Milvus_VectorStores implements INode {
                 description:
                     'Filter data with a simple string query. Refer Milvus <a target="_blank" href="https://milvus.io/blog/2022-08-08-How-to-use-string-data-to-empower-your-similarity-search-applications.md#Hybrid-search">docs</a> for more details.',
                 placeholder: 'doc=="a"',
-                additionalParams: true
+                additionalParams: true,
+                acceptVariable: true
             },
             {
                 label: 'Top K',