fix: replace bare except with except Exception (#22473)

Replace bare except clauses with except Exception to follow Python best practices and avoid catching unexpected system exceptions like KeyboardInterrupt and SystemExit.

backend/open_webui/routers/pipelines.py

@@ -70,7 +70,7 @@ async def process_pipeline_inlet_filter(request, payload, user, models):
 
             try:
                 urlIdx = int(urlIdx)
-            except:
+            except Exception:
                 continue
 
             url = request.app.state.config.OPENAI_API_BASE_URLS[urlIdx]
@@ -123,7 +123,7 @@ async def process_pipeline_outlet_filter(request, payload, user, models):
 
             try:
                 urlIdx = int(urlIdx)
-            except:
+            except Exception:
                 continue
 
             url = request.app.state.config.OPENAI_API_BASE_URLS[urlIdx]