feat: add paddleocr parser (#12513)

### What problem does this PR solve?

Add PaddleOCR as a new PDF parser.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

conf/llm_factories.json

@@ -5531,6 +5531,14 @@
             "status": "1",
             "rank": "900",
             "llm": []
+        },
+        {
+            "name": "PaddleOCR",
+            "logo": "",
+            "tags": "OCR",
+            "status": "1",
+            "rank": "910",
+            "llm": []
         }
     ]
 }