message: add jwt sig validation to changelog
diff: @@ -9,14 +9,15 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
  ### Added
  -- JWT key auto-refresh, can be enabled by providing `"auto_refresh": true` and `"ca_cert_name": "..."` in `set_jwt_issuer` proposal.
  +- JWT key auto-refresh (#1908), can be enabled by providing `"auto_refresh": true` and `"ca_cert_name": "..."` in `set_jwt_issuer` proposal.
  - Auto-refresh is currently only supported for providers following the OpenID Connect standard where keys are published under the `/.well-known/openid-configuration` path of the issuer URL.
  - `ca_cert_name` refers to a certificate stored with a `set_ca_cert` proposal and is used to validate the TLS connection to the provider endpoint.
  +- JWT signature validation (#1912), can be enabled with the `require_jwt_authentication` endpoint property.
  ### Changed
  - Members can no longer vote multiple times on governance proposals (#1743).
  -- `update_ca_cert` proposal has been replaced by `set_ca_cert`/`remove_ca_cert`.
  +- `update_ca_cert` proposal has been replaced by `set_ca_cert`/`remove_ca_cert` (#1917).
  ### Deprecated
  