refac/fix: rename WEB_SEARCH_CONCURRENT_REQUESTS to WEB_LOADER_CONCURRENT_REQUESTS

backend/open_webui/retrieval/web/duckduckgo.py

@@ -11,7 +11,10 @@ log.setLevel(SRC_LOG_LEVELS["RAG"])
 
 
 def search_duckduckgo(
-    query: str, count: int, filter_list: Optional[list[str]] = None
+    query: str,
+    count: int,
+    filter_list: Optional[list[str]] = None,
+    concurrent_requests: Optional[int] = None,
 ) -> list[SearchResult]:
     """
     Search using DuckDuckGo's Search API and return the results as a list of SearchResult objects.
@@ -25,6 +28,9 @@ def search_duckduckgo(
     # Use the DDGS context manager to create a DDGS object
     search_results = []
     with DDGS() as ddgs:
+        if concurrent_requests:
+            ddgs.threads = concurrent_requests
+
         # Use the ddgs.text() method to perform the search
         try:
             search_results = ddgs.text(