Update CHANGELOG for v0.20.8 release

CHANGELOG.md

@@ -26,6 +26,13 @@ The following types of changes will be recorded in this file:
 
 - placeholder
 
+## [v0.20.8] - 2024-06-10
+
+### Changed
+
+- (GH-1578) Update golang.org/x/vuln to v1.1.2
+- (GH-1580) Update golangci-lint to v1.59.1
+
 ## [v0.20.7] - 2024-06-05
 
 ### Changed
@@ -2851,7 +2858,8 @@ waiting on a new upstream release.
       tools that we include in our container images
   - Dockerfile base images
 
-[Unreleased]: https://github.com/atc0005/go-ci/compare/v0.20.7...HEAD
+[Unreleased]: https://github.com/atc0005/go-ci/compare/v0.20.8...HEAD
+[v0.20.8]: https://github.com/atc0005/go-ci/releases/tag/v0.20.8
 [v0.20.7]: https://github.com/atc0005/go-ci/releases/tag/v0.20.7
 [v0.20.6]: https://github.com/atc0005/go-ci/releases/tag/v0.20.6
 [v0.20.5]: https://github.com/atc0005/go-ci/releases/tag/v0.20.5