Prepare v0.5.3 release

Author: calind

Changelog.md

@@ -8,6 +8,12 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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+### Fixed
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+## [0.5.3] - 2021-12-06
+### Added
+### Changed
+### Removed
 ### Fixed
  * Workaround CRD generation with `preserveUnknownFields=false` [kubernetes-sigs/controller-tools#476](https://github.com/kubernetes-sigs/controller-tools/issues/476)