Update icu4x to 2.0.0-beta2 (#218)

It may be possible to use the `icu_time` crate for some timezone stuff
now

Author: Manishearth

Cargo.lock

@@ -21,7 +21,7 @@ exclude = [
 
 [workspace.dependencies]
 tinystr = "0.8.0"
-icu_calendar = { version = "2.0.0-beta1", default-features = false}
+icu_calendar = { version = "2.0.0-beta2", default-features = false}
 rustc-hash = "2.1.0"
 bitflags = "2.7.0"
 num-traits = "0.2.19"