Update changelog

Signed-off-by: mulhern <amulhern@redhat.com>

Author: mulkieran

CHANGES.txt

@@ -6,6 +6,12 @@ Recommended development release: Fedora 39
 - Increase retry dependency lower bound to 2.0.0:
   https://github.com/stratis-storage/devicemapper-rs/pull/902
 
+- devicemapper-sys: Release version 0.3.0
+  https://github.com/stratis-storage/devicemapper-rs/pull/906
+
+- devicemapper-rs-sys: Increase bindgen dependency lower bound:
+  https://github.com/stratis-storage/devicemapper-rs/pull/904
+
 - Tidies and Maintenance:
   https://github.com/stratis-storage/devicemapper-rs/pull/905
   https://github.com/stratis-storage/devicemapper-rs/pull/903