Update changelog

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

Author: mulkieran

CHANGES.txt

@@ -1,6 +1,6 @@
 devicemapper 0.33.5 (UNRELEASED)
 ================================
-Recommended Rust toolchain version: 1.69.0
+Recommended Rust toolchain version: 1.70.0
 Lowest supported Rust toolchain version: 1.66.1
 Recommended development release: Fedora 38
 
@@ -11,6 +11,7 @@ Recommended development release: Fedora 38
   https://github.com/stratis-storage/devicemapper-rs/pull/855
 
 - Tidies and Maintenance:
+  https://github.com/stratis-storage/devicemapper-rs/pull/861
   https://github.com/stratis-storage/devicemapper-rs/pull/860
   https://github.com/stratis-storage/devicemapper-rs/pull/857
   https://github.com/stratis-storage/devicemapper-rs/pull/854