bubblewrap: 0.2.0 -> 0.2.1 (#38770)

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/bubblewrap/versions.

These checks were done:

- built on NixOS
- ran ‘/nix/store/k02fh24ypj5gzazl8qknff4wi7xn0hp6-bubblewrap-0.2.1/bin/bwrap --help’ got 0 exit code
- ran ‘/nix/store/k02fh24ypj5gzazl8qknff4wi7xn0hp6-bubblewrap-0.2.1/bin/bwrap --version’ and found version 0.2.1
- found 0.2.1 with grep in /nix/store/k02fh24ypj5gzazl8qknff4wi7xn0hp6-bubblewrap-0.2.1
- directory tree listing: https://gist.github.com/9ee4cdd00b90b74f8599566d9ed1d5d0