chore: bump version to v0.13.0

Author: pjsier

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## Unreleased
 
+## [v0.13.0](https://github.com/georust/kml/releases/tag/v0.13.0)
+
+- Add attribute and version parsing to `KmlDocument` ([#75](https://github.com/georust/kml/pull/75)) from [@NikBel3476](https://github.com/NikBel3476)
+- Fix handling of empty elements ([#73](https://github.com/georust/kml/pull/73)) from [@ricardobtez](https://github.com/ricardobtez)
+
 ## [v0.12.0](https://github.com/georust/kml/releases/tag/v0.12.0)
 
 - Add `kml:Data` ([#72](https://github.com/georust/kml/pull/72)) from [@DimitriiTrater](https://github.com/DimitriiTrater)

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "kml"
-version = "0.12.0"
+version = "0.13.0"
 authors = [
     "Pat Sier <pjsier@gmail.com>",
     "The GeoRust Developers <mods@georust.org>",