Semi-automatic update. These checks were performed:
- built on NixOS
- found 2.0.2 with grep in /nix/store/6wff31scywzmgmv4hqab1jfj391vv95y-pgroonga-2.0.2
- found 2.0.2 in filename of file in /nix/store/6wff31scywzmgmv4hqab1jfj391vv95y-pgroonga-2.0.2
cc "@DerTim1"