Add attributes to remove management modules (#5961)

Add attributes to remove management modules.

plugins/modules/ocapi_command.py

@@ -17,6 +17,13 @@ description:
   - Builds OCAPI URIs locally and sends them to remote OOB controllers to
     perform an action.
   - Manages OOB controller such as Indicator LED, Reboot, Power Mode, Firmware Update.
+extends_documentation_fragment:
+  - community.general.attributes
+attributes:
+  check_mode:
+    support: full
+  diff_mode:
+    support: none
 options:
   category:
     required: true