Bump version to v0.13.0.

CHANGELOG.md

@@ -9,6 +9,12 @@ The format is based on [Keep a Changelog], and this project adheres to
 [Keep a Changelog]: https://keepachangelog.com/en/1.0.0/
 [Semantic Versioning]: https://semver.org/spec/v2.0.0.html
 
+## [0.13.0] - 2021-03-01
+
+### Changed
+
+- **[BC]** Updated to Dogma to v0.11.0
+
 ## [0.12.0] - 2020-12-20
 
 This release includes several changes to the underlying action and expectation
@@ -245,6 +251,7 @@ simple to migrate existing tests to the new API. Please see the
 [0.10.0]: https://github.com/dogmatiq/testkit/releases/tag/v0.10.0
 [0.11.0]: https://github.com/dogmatiq/testkit/releases/tag/v0.11.0
 [0.12.0]: https://github.com/dogmatiq/testkit/releases/tag/v0.12.0
+[0.13.0]: https://github.com/dogmatiq/testkit/releases/tag/v0.13.0
 
 [v0.11.0 migration guide]: https://github.com/dogmatiq/testkit/blob/main/docs/MIGRATING-v0.11.0.md