perf: use docling-parse-v4 as default (#2503)

use doclnig-parse-v4 as default

Signed-off-by: Michele Dolfi <[email protected]>

Author: dolfim-ibm

docling/cli/main.py

@@ -403,7 +403,7 @@ def convert(  # noqa: C901
     ] = None,
     pdf_backend: Annotated[
         PdfBackend, typer.Option(..., help="The PDF backend to use.")
-    ] = PdfBackend.DLPARSE_V2,
+    ] = PdfBackend.DLPARSE_V4,
     table_mode: Annotated[
         TableFormerMode,
         typer.Option(..., help="The mode to use in the table structure model."),