Update stacks-signer changelog for 2.5.0.0.5.1

stacks-signer/CHANGELOG.md

@@ -7,3 +7,18 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 
 ## [Unreleased]
 
+## [2.5.0.0.5.1]
+
+### Added
+
+- Adds signerdb schema versioning (#4965)
+- Added voting cli commands `generate-vote` and `verify-vote` (#4934)
+- Add soritiion tracking cache (#4905)
+- Push blocks to signer set and adds `/v3/blocks/upload` (#4902)
+
+### Changed
+
+- Fix an issue of poorly timed tenure and bitcoin blocks (#4956)
+- Process pending blocks before ending tenure (#4952)
+- Update rusqlite/sqlite versions (#4948)
+- return last block sortition in `/v3/sortitions` (#4939)