jobq-wire: take utoipa's chrono feature from the workspace

The per-crate features = ["chrono"] override was a local deviation with a
comment defending it. The feature belongs in the workspace list, where every
crate sees the same utoipa.

Cargo.toml

@@ -116,5 +116,5 @@ matrix-sdk = { version = "0.18", default-features = false, features = [
 futures-util = "0.3"
 hmac = "0.13"
 sha2 = "0.11"
-utoipa = { version = "5", features = ["axum_extras"] }
+utoipa = { version = "5", features = ["axum_extras", "chrono"] }
 utoipa-axum = "0.2"

hive-jobq-wire/Cargo.toml

@@ -13,6 +13,4 @@ enumflags2 = { workspace = true }
 hive-jobq = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
-# `chrono` for the lifecycle timestamps' schema; the workspace default carries
-# only `axum_extras`, and features are additive so this affects nothing else.
-utoipa = { workspace = true, features = ["chrono"] }
+utoipa = { workspace = true }