ibus-engines.table-others: 1.3.7 -> 1.3.9

Semi-automatic update generated by https://github.com/ryantm/nix-update tools. These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 1.3.9 with grep in /nix/store/xjlb70932y0prqlw4p7iizbffm89pi7a-ibus-table-others-1.3.9
- directory tree listing: https://gist.github.com/aafa62fbd6afde2d7ca2d96e39eaa850