Update changelog

Author: warmwaffles

CHANGELOG.md

@@ -72,6 +72,7 @@ adheres to [Semantic Versioning][semver].
 [keepachangelog]: <https://keepachangelog.com/en/1.0.0/>
 [semver]: <https://semver.org/spec/v2.0.0.html>
 [Unreleased]: https://github.com/elixir-sqlite/ecto_sqlite3/compare/v0.7.0...HEAD
+[0.7.1]: https://github.com/elixir-sqlite/ecto_sqlite3/compare/v0.7.0...v0.7.1
 [0.7.0]: https://github.com/elixir-sqlite/ecto_sqlite3/compare/v0.6.1...v0.7.0
 [0.6.1]: https://github.com/elixir-sqlite/ecto_sqlite3/compare/v0.6.0...v0.6.1
 [0.6.0]: https://github.com/elixir-sqlite/ecto_sqlite3/compare/v0.5.7...v0.6.0