Update Rust crate diesel to 2.2.12 (#8666)

Author: oxide-renovate[bot]

Cargo.lock

@@ -422,7 +422,7 @@ derive_more = "0.99.20"
 derive-where = "1.5.0"
 dev-tools-common = { path = "dev-tools/common" }
 # Having the i-implement-... feature here makes diesel go away from the workspace-hack
-diesel = { version = "2.2.11", features = ["i-implement-a-third-party-backend-and-opt-into-breaking-changes", "postgres", "r2d2", "chrono", "serde_json", "network-address", "uuid"] }
+diesel = { version = "2.2.12", features = ["i-implement-a-third-party-backend-and-opt-into-breaking-changes", "postgres", "r2d2", "chrono", "serde_json", "network-address", "uuid"] }
 diesel-dtrace = "0.4.2"
 digest = "0.10.7"
 dns-server = { path = "dns-server" }