ocamlPackages.ocurl: 0.8.0 -> 0.8.1

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

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

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 0.8.1 with grep in /nix/store/g76kv7vaw650ibv0rv7544biwpzrdisw-ocurl-0.8.1
- directory tree listing: https://gist.github.com/3093abaf0dd2e39a2eb0d107f14fe8db
- du listing: https://gist.github.com/6e66e0fd5554664ca460eaa3e19a44aa