Enable automatic package sync to main for Rolling

[Yadunund]

Description

Enable automatic triggering of the sync-to-main job for Rolling after a successful sync-to-testing, gated on the availability of key packages across all architectures.

This uses the new sync.auto_trigger_main option introduced in ros-infrastructure/ros_buildfarm#1151.

The sync.packages list has been updated to include desktop-full and simulation in addition to the existing desktop entry. This may be redundant since simulation includes the others but I felt this way we can simply drop simulation when we want to.

Also considering adding packages that fall under the OSRF management like RMF, ros2_controls etc. Would like to discuss this with the PMC in the upcoming meeting.

Fixes # (issue)

NA

Is this user-facing behavior change?

Yes. The Rolling sync-to-main job will now be triggered automatically after
each arch's sync-to-testing job succeeds, rather than requiring manual
triggering. The sync only proceeds if the existing criteria are met

Did you use Generative AI?

No.

Additional Information

The auto_trigger_main flag defaults to false in the buildfarm code, so
this change has no effect on other distributions.

[Yadunund]

Following the PMC meeting earlier in the week, updated the packages to desktop_full and switched to package_percent of 80.

There are 1593 Rolling packages and historically I don't perform a sync unless the number of regressing packages < 60. There have been a couple of exceptions and the max number of regressions I've allowed is ~200. Which roughly translates to 80%.