build(deps): update rust crate convert_case to 0.12.0 (#523)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Cargo.lock

@@ -16,7 +16,7 @@ utoipa = ["dep:utoipa"]
 async-trait.workspace = true
 bon.workspace = true
 chrono = { workspace = true, features = ["serde"] }
-convert_case = "0.11.0"
+convert_case = "0.12.0"
 ordered_hash_map = "0.6.0"
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true