[PATCH v2 0/3] MR9145: taskschd: ITaskDefinition fixes

[Owen Rudge (＠orudge)]

Patch 1 fixes a bug that causes the `ITaskDefinition` to be freed as soon as the `IRegisteredTask` is created.

Patches 2 and 3 implement the ITaskDefinition Data property.

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  v2: taskschd: Implement ITaskDefinition Data property.

https://gitlab.winehq.org/wine/wine/-/merge_requests/9145