feat(r2gg): update to 2.2.6 for subprocess check

Update r2gg to 2.2.6

Related IGNGPF-3516

pivot_road2_to_graph_road2/core.py

@@ -419,7 +419,7 @@ def log_r2gg_subprocess_output(pipe) -> None:
         pipe : subprocess pipe
     """
     for line in iter(pipe.readline, b""):
-        logger.info(f"r2gg||{line.decode('utf-8').strip()}")
+        logger.user_info(f"r2gg||{line.decode('utf-8').strip()}")
 
 
 def run_r2gg(work_dir: Path, type: AvailableTypes) -> None: