Update changelog

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

CHANGES.txt

@@ -3,7 +3,16 @@ libblkid-rs 0.3.3 (UNRELEASED)
 Recommended Rust toolchain version: 1.76.0
 Recommended development release: Fedora 39
 
+- Add error code to libblkid error variant:
+  https://github.com/stratis-storage/libblkid-rs/pull/176
+
+- Use pkg-config to find header search paths for bindgen:
+  https://github.com/stratis-storage/libblkid-rs/pull/171
+
 - Tidies and Maintenance:
+  https://github.com/stratis-storage/libblkid-rs/pull/174
+  https://github.com/stratis-storage/libblkid-rs/pull/173
+  https://github.com/stratis-storage/libblkid-rs/pull/172
   https://github.com/stratis-storage/libblkid-rs/pull/170
   https://github.com/stratis-storage/libblkid-rs/pull/169
   https://github.com/stratis-storage/libblkid-rs/pull/168