Add release notes for 5.19.3 (#2412)
Add release notes for 5.19.3 (#2412)

* Add 5.19.3 to supported versions page

* Add release ntoes for 5.19.3

* Remove supported versions page from PR

* Remove edition commit

* Update to include final changelog changes

* Add new bugfix
sensu/sensu-docs,sensu/sensu-docs,sensu/sensu-docs,sensu/sensu-docs,sensu/sensu-docs