Add redis caching to getting user notifications and projects [MOD-540] (#723)

* Add redis caching to getting a user's project ids

* Run `cargo sqlx prepare` to update the sqlx-data.json

* Add redis caching for getting user notifications

* Fix new clippy warnings

* Remove log that shouldn't have been committed

* Batch insert of notifications (untested)

* sqlx prepare...

* Fix merge conflict things and use new redis struct

* Fix bug with calling delete_many without any elements (caught by tests)

* cargo sqlx prepare

* Add tests around cache invalidation (and fix bug they caught!)

* Some test reorg based on code review suggestions

src/routes/v2/analytics_get.rs

@@ -488,7 +488,7 @@ async fn filter_allowed_ids(
     if project_ids.is_none() && version_ids.is_none() {
         if let Some(user) = &user_option {
             project_ids = Some(
-                user_item::User::get_projects(user.id.into(), &***pool)
+                user_item::User::get_projects(user.id.into(), &***pool, redis)
                     .await?
                     .into_iter()
                     .map(|x| ProjectId::from(x).to_string())