Fix disabling the cache feature

[viperML]

The #[cfg] only applies to the following line. Othewise, building without the feature yields:

$ cargo build --no-default-features
    Updating crates.io index
   Compiling libc v0.2.155
   Compiling uzers v0.12.0 (/home/ayats/Documents/uzers-rs)
error[E0432]: unresolved import `cache`
   --> src/lib.rs:151:9
    |
151 | pub use cache::UsersSnapshot;
    |         ^^^^^ maybe a missing crate `cache`?
    |
    = help: consider adding `extern crate cache` to use the `cache` crate

For more information about this error, try `rustc --explain E0432`.
error: could not compile `uzers` (lib) due to 1 previous error

[gierens]

I updated the commit message to conform convco and fixed the other unrelated CI issues.

LGTM! Thanks!

[viperML]

Thank you

[gierens]

I'll probably put it in a 0.12.1 release later the day.

[gierens]

Released ;)