os-tayga: no configuration synchronization

Important notices
Before you add a new report, we ask you kindly to acknowledge the following:

• I have read the contributing guide lines at https://github.com/opnsense/plugins/blob/master/CONTRIBUTING.md
• I have searched the existing issues, open and closed, and I'm convinced that mine is new.
• The title contains the plugin to which this issue belongs

Describe the bug
Running a HA opnsense cluster, and recently added tayga as service to the primary node.
Configuration is synchronized via XMLRPC to the second node. Tayga is selected to be included in the configuration on the primary node, but configuration changes are not present on the secondary node after sync.

To Reproduce
Steps to reproduce the behavior:

1. Create HA cluster
2. Setup XMLRPC sync, added tayga as included service
3. Enable tayga on primary node and re-sync configuration manually
4. tayga plugin is not enabled on secondary node

Expected behavior
Changes to the plugin configuration should be synchronized

Environment
Versions
OPNsense 26.1.10-amd64
FreeBSD 14.3-RELEASE-p15
os-tayga 1.5

No source files or tests are named. Start by tracing the os-tayga configuration's XMLRPC synchronization path using the reproduction steps, then verify that enabling and changing tayga on the primary is reflected on the secondary.