Update changelog

Signed-off-by: mulhern <[email protected]>

Author: mulkieran

CHANGES.txt

@@ -3,6 +3,9 @@ libcryptsetup-rs 0.13.1
 Recommended Rust toolchain version: 1.86.0
 Recommended development environment: Fedora 41
 
+- libcryptsetup-rs-sys: Release version 0.6.0:
+  https://github.com/stratis-storage/libcryptsetup-rs/pull/435
+
 - Revert clang macro fallback usage:
   https://github.com/stratis-storage/libcryptsetup-rs/pull/433