fix: update cwd_read to assign vfsmnt correctly

The current code incorrectly assigns vfsmnt during path resolution, causing
duplicate or unexpected path prefixes. This commit ensures correct path resolution across different mount types and
environments.

Signed-off-by: arthur-zhang <happyzhangya@gmail.com>

Author: arthur-zhang

bpf/process/bpf_process_event.h

@@ -202,8 +202,7 @@ FUNC_INLINE long cwd_read(struct cwd_read_data *data)
 			probe_read(&data->dentry, sizeof(data->dentry),
 				   _(&mnt->mnt_mountpoint));
 			data->mnt = parent;
-			probe_read(&data->vfsmnt, sizeof(data->vfsmnt),
-				   _(&mnt->mnt));
+			data->vfsmnt = _(&parent->mnt);
 			return 0;
 		}
 		// resolved all path components successfully