Chore: Changelog for v1.0.0-alpha.6

Author: mxmason

CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 Prior to v1.0.0-alpha.1, logs were generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
+## [v1.0.0-alpha.6](https://github.com/netlify-labs/netlify-plugin-a11y/compare/v1.0.0-alpha.6...v1.0.0-alpha.6)
+
+### Changed
+- Fixes [#68](https://github.com/netlify-labs/netlify-plugin-a11y/issues/68) by only failing builds if issues are found. Thank you to [@vgautam](https://github.com/vgautam) for reporting.
+- Internal: Updates dev dependencies.
+
 ## [v1.0.0-alpha.5](https://github.com/netlify-labs/netlify-plugin-a11y/compare/v1.0.0-alpha.4...v1.0.0-alpha.5)
 
 ### Added