Feature request: support of manualSync flag for ArgoCD sync windows

[aengelh]

Description

In ArgoCD, sync windows can be defined to either allow or deny syncs during a time frame (see https://argo-cd.readthedocs.io/en/stable/user-guide/sync_windows/).
For these sync windows, there is a configuration option called manualSync, which determines if manual syncs are allowed for the sync window or not (https://argo-cd.readthedocs.io/en/stable/user-guide/sync_windows/#effect-of-sync-windows).
Whilst sync windows can be created via kuberpult (https://github.com/freiheit-com/kuberpult/blob/v13.0.1/docs/environment.md#argo-cd , bullet point 'sync windows'), there is no mention of the manualSync flag, since it is not supported by kuberpult.

Steps to recreate

• create ArgoCD environment via kuberpult, e.g. via config map, add manualSync flag:
  "sync_windows" : [
  {
  "kind" : "deny",
  "schedule" : "0 10 * * 1-5",
  "duration" : "3h",
  "manualSync" : false
  }
  ]
• the sync window is being created in ArgoCD but with manualSync set to true/enabled, since the flag is obviously ignored by kuberpult

[sven-urbanski-freiheit-com]

Hey @aengelh,
is this still something you need?

Generally speaking, argo-cds syncwindows are not something we want to focus on, because usually this can be solved with kuberpult locks or cron jobs.

If you confirm that this would still be important, we can do it, but if I don't hear anything I will close this issue as "won't fix".