Fix attribute typo in https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.3/html-single/using_dynamic_plugins/index#using-the-argo-cd-plugin

• Additional resources

• • For more information on dynamic plugins, see Dynamic plugin installation.

Incorrectly links to 1.2 docs - this doesn't need to link to installation docs as the guide is intended for RHDH users not platform engineers.