First release of the core/v2 module

Publish a module for core/v2 and core/v3 APIs (#3818)

These nested modules are intended to be used in situations
where importing all of sensu-go is not desirable.

Signed-off-by: Eric Chlebek <eric@sensu.io>

v5.20.2

This release is the v5.20.2 release of Sensu Go. It was tagged from the SHA e814600.

v5.20.1

This release is the v5.20.1 release of Sensu Go. It was tagged from the SHA 9bfcfb6.

v5.20.0

This release is the v5.20.0 release of Sensu Go. It was tagged from the SHA 3a1ac58.

v5.19.3

This release is the v5.19.3 release of Sensu Go. It was tagged from the SHA 478f7bd.

v5.19.1

This release is the v5.19.1 release of Sensu Go. It was tagged from the SHA 3f1b697.

v5.19.0

This release is the v5.19.0 release of Sensu Go. It was tagged from the SHA 821ed3e.

v5.18.1

This release is the v5.18.1 release of Sensu Go. It was tagged from SHA 0c45f08.

v5.18.0

The is release v5.18.0 of sensu-go. It was tagged from the release/5.18 branch, SHA 670381e539b7af2ee9dff3863249950d71db7b53.

v5.17.2

This release is the v5.17.2 release of Sensu Go. It was tagged from the SHA ab5b121.