Update diesel packages to 2.1.0

Diesel 2.1.0 has received several GAT cleanups for
workarounds required when rust didn't support them.
Hence, several types have become associated types.
For users that don't enable the `with-deprecated`
feature this is a breaking change because the bridging
type alias is then not present.

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Added a new `RegistrationAuthority` type.
 - Updated the registration authority list to [v1.7](https://www.gleif.org/about-lei/code-lists/gleif-registration-authorities-list/2022-03-23_ra_list_v1.7.xlsx).
+- Pinned the minimum required `diesel` version to `2.1.0`. and fixed
+  the (feature-flag protected) breaking changes.
 
 ## [0.1.2](https://gitlab.com/21analytics/lei/-/tags/0.1.2) - 2023-06-12
 

Cargo.toml

@@ -17,7 +17,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 
 [dependencies]
 async-graphql = { optional = true, version = "5", default-features = false, features = [ "chrono" ] }
-diesel = { optional = true, version = "2.0.*", default-features = false }
+diesel = { optional = true, version = "2.1", default-features = false }
 rand = "0.8"
 serde = { version = "1", features = [ "derive" ] }
 thiserror = "1"

src/lib.rs

@@ -89,7 +89,7 @@ where
     DB: diesel::backend::Backend,
     String: diesel::deserialize::FromSql<diesel::sql_types::Text, DB>,
 {
-    fn from_sql(bytes: diesel::backend::RawValue<DB>) -> diesel::deserialize::Result<Self> {
+    fn from_sql(bytes: DB::RawValue<'_>) -> diesel::deserialize::Result<Self> {
         Ok(std::convert::TryFrom::try_from(
             String::from_sql(bytes)?.as_str(),
         )?)