update minor version as it is a breaking change to add a value to an

enum

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 description = "Read GTFS (public transit timetables) files"
 name = "gtfs-structures"
-version = "0.37.1"
+version = "0.38.0"
 authors = ["Tristram Gräbener <[email protected]>", "Antoine Desbordes <[email protected]>"]
 repository = "https://github.com/rust-transit/gtfs-structure"
 license = "MIT"