chore: update changelog for manage_agent_pools addition

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## v0.56.0
 
+FEATURES:
+* `r/tfe_team`: Add attribute `manage_agent_pools` to `organization_access` on `tfe_team` by @emlanctot [#1358](https://github.com/hashicorp/terraform-provider-tfe/pull/1358)
+
 ENHANCEMENTS:
 * `r/tfe_oauth_client`: Add Bitbucket Data Center support with the `bitbucket_data_center` option for `service_provider` by @zainq11 [#1303](https://github.com/hashicorp/terraform-provider-tfe/pull/1304)
 * `r/tfe_workspace`: Add an `auto_destroy_at` attribute for scheduling an auto-destroy run in the future, by @notchairmk [1354](https://github.com/hashicorp/terraform-provider-tfe/pull/1354)