🔖(minor) bump release to 5.12.0

Fixed

- Recent `openshift-acme` releases require more permissions in the current
  namespace

Removed

- Use new custom nginx image in the richie app allows to remove the
  collectstatic job and the static files volume

CHANGELOG.md

@@ -8,6 +8,8 @@ Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
 
+## [5.12.0] - 2020-06-09
+
 ### Fixed
 
 - Recent `openshift-acme` releases require more permissions in the current
@@ -784,7 +786,8 @@ Versioning](http://semver.org/spec/v2.0.0.html).
 - Official Docker image is available at:
   https://hub.docker.com/r/fundocker/arnold/
 
-[unreleased]: https://github.com/openfun/arnold/compare/v5.11.1...master
+[unreleased]: https://github.com/openfun/arnold/compare/v5.12.0...master
+[5.12.0]: https://github.com/openfun/arnold/compare/v5.11.1...v5.12.0
 [5.11.1]: https://github.com/openfun/arnold/compare/v5.11.0...v5.11.1
 [5.11.0]: https://github.com/openfun/arnold/compare/v5.10.0...v5.11.0
 [5.10.0]: https://github.com/openfun/arnold/compare/v5.9.0...v5.10.0

VERSION

@@ -1 +1 @@
-5.11.1
+5.12.0