message: nydus-image: make chunk table offset align to block size
  Otherwise, when loading chunk table, it'll fail alignment checks.
diff: @@ -656,9 +656,17 @@ impl Bootstrap {
  }
  // append chunk info table.
  - let chunk_table_offset = bootstrap_writer
  + // align chunk table to EROFS_BLOCK_SIZE firstly.
  + let pos = bootstrap_writer
  .seek_to_end()
  - .context("failed to get chunk table offset")?;
  + .context("failed to seek to bootstrap's end for chunk table")?;
  + let padding = align_offset(pos, EROFS_BLOCK_SIZE as u64) - pos;
  + bootstrap_writer
  + .write_all(&WRITE_PADDING_DATA[0..padding as usize])
  + .context("failed to write 0 to padding of bootstrap's end for chunk table")?;
  +
  + let chunk_table_offset = pos + padding;
  +
  let mut chunk_table_size: u64 = 0;
  for (_, chunk) in chunk_cache.m.iter() {
  let chunk = &chunk.0;
  