Update changelog

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

Author: mulkieran

CHANGES.txt

@@ -1,3 +1,22 @@
+devicemapper 0.33.5 (UNRELEASED)
+================================
+Recommended Rust toolchain version: 1.69.0
+Lowest supported Rust toolchain version: 1.66.1
+Recommended development release: Fedora 38
+
+- Patch Cargo.toml to avoid loopdev FTBFS:
+  https://github.com/stratis-storage/devicemapper-rs/pull/852
+
+- Increase bitflags dependency lower bound to 1.3.2:
+  https://github.com/stratis-storage/devicemapper-rs/pull/855
+
+- Tidies and Maintenance:
+  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
+  https://github.com/stratis-storage/devicemapper-rs/pull/853
+
+
 devicemapper 0.33.4
 ===================
 Recommended Rust toolchain version: 1.68.0