Expose test utils to Labrinth dependents (#4703)

* Expose test utils to Labrinth dependents

* Feature gate `labrinth::test`

* Unify db migrators

* Expose `NotificationBuilder::insert_many_deliveries`

* Add logging utils to common crate

* Remove unused console-subscriber layer

* fix CI

packages/modrinth-util/src/lib.rs

@@ -1,6 +1,8 @@
 #![doc = include_str!("../README.md")]
 
 mod error;
+pub mod log;
+
 pub use error::*;
 
 use eyre::{Result, eyre};