[ANN] opam 2.0.8 release

We are pleased to announce the minor release of opam 2.0.8.

This new version contains some fixes, mainly for sandbox and fish scripts. You can find more information in this blog post, and more detailed in the release note.

opam is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow.