Update changelog

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

Author: mulkieran

CHANGES.txt

@@ -1,12 +1,18 @@
 libcryptsetup-rs 0.12.1
 =======================
-Recommended Rust toolchain version: 1.85.0
+Recommended Rust toolchain version: 1.86.0
 Recommended development environment: Fedora 40
 
 - Disable cargo metadata in pkg-config probe:
   https://github.com/stratis-storage/libcryptsetup-rs/pull/406
 
+- Increase rand dependency lower bound to 0.9.0:
+  https://github.com/stratis-storage/libcryptsetup-rs/pull/410
+
 - Tidies and Maintenance:
+  https://github.com/stratis-storage/libcryptsetup-rs/pull/412
+  https://github.com/stratis-storage/libcryptsetup-rs/pull/411
+  https://github.com/stratis-storage/libcryptsetup-rs/pull/409
   https://github.com/stratis-storage/libcryptsetup-rs/pull/405
   https://github.com/stratis-storage/libcryptsetup-rs/pull/404
   https://github.com/stratis-storage/libcryptsetup-rs/pull/403