Add SQLx operation tracing (#5223)

* wip: vendor sqlx-tracing

* (compiles) standardize pg types used

* more standardization

* general log message improvements

* wip: improve sqlx-tracing architecture

* unify sqlx::Executor type

* wip: try fix sqlx tracing

* wip: sqlx-tracing compiles

* so close

* it compiles

* fix ci

apps/labrinth/src/routes/internal/external_notifications.rs

@@ -1,4 +1,5 @@
 use crate::auth::get_user_from_headers;
+use crate::database::PgPool;
 use crate::database::models::ids::DBUserId;
 use crate::database::models::notification_item::NotificationBuilder;
 use crate::database::models::user_item::DBUser;
@@ -14,7 +15,6 @@ use actix_web::web;
 use actix_web::{HttpResponse, post};
 use ariadne::ids::UserId;
 use serde::Deserialize;
-use sqlx::PgPool;
 
 pub fn config(cfg: &mut web::ServiceConfig) {
     cfg.service(create).service(send_custom_email);
@@ -41,7 +41,7 @@ pub async fn create(
 
     let mut txn = pool.begin().await?;
 
-    if !DBUser::exists_many(&user_ids, &mut *txn).await? {
+    if !DBUser::exists_many(&user_ids, &mut txn).await? {
         return Err(ApiError::InvalidInput(
             "One of the specified users do not exist.".to_owned(),
         ));