With SNAFU, a context as well as a message can be given. It is similar to thiserror. Start using this to give meaningful errors without relying on anyhow.

Implements: https://todo.sr.ht/~witcher/rss-email/27 Implements: https://todo.sr.ht/~witcher/rss-email/26

Using rust on alpine is a pain, so just build on Arch Linux instead

Release mode builds are not necessary anymore as no artifacts are published. Helps CI load. Additionally, no docs are built either for the same reason.

No tests presently exist for this package, so take some load off CI by removing running tests entirely

cocogitto, with its binary `cog`, helps in me not messing any bumps in releases up anymore. In addition, all new tags, starting with the next version, now have a `v` prefix. https://github.com/cocogitto/cocogitto/

The version number in Cargo.toml was not updated from 0.3.0 to 0.4.0 in the 0.4.0 release, this is "fixed" with a new patch release bumping the version.

Implements: https://todo.sr.ht/~witcher/rss-email/20

Implements: https://todo.sr.ht/~witcher/rss-email/22