date: add ICU support for day/months names

Fixes: https://bugs.launchpad.net/ubuntu/+source/rust-coreutils/+bug/2130859

Author: sylvestre

Cargo.lock

@@ -329,7 +329,9 @@ gcd = "2.3"
 glob = "0.3.1"
 half = "2.4.1"
 hostname = "0.4"
+icu_calendar = "2.0.0"
 icu_collator = "2.0.0"
+icu_datetime = "2.0.0"
 icu_decimal = "2.0.0"
 icu_locale = "2.0.0"
 icu_provider = "2.0.0"

Cargo.toml

@@ -18,16 +18,20 @@ workspace = true
 [lib]
 path = "src/date.rs"
 
+[features]
+i18n-datetime = ["uucore/i18n-datetime", "icu_calendar"]
+
 [dependencies]
 clap = { workspace = true }
 fluent = { workspace = true }
+icu_calendar = { workspace = true, optional = true }
 jiff = { workspace = true, features = [
   "tzdb-bundle-platform",
   "tzdb-zoneinfo",
   "tzdb-concatenated",
 ] }
 parse_datetime = { workspace = true }
-uucore = { workspace = true, features = ["parser"] }
+uucore = { workspace = true, features = ["parser", "i18n-datetime"] }
 
 [target.'cfg(unix)'.dependencies]
 nix = { workspace = true, features = ["time"] }