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## Current Behavior
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The only way to set if a task is continuous is either directly in
`project.json` or via Project Graph Plugins.
## Expected Behavior
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-->
Executors know if they are definitely continuous or not. Plenty of
existing continuous tasks are using executors. Executors are now able to
define if they are continuous in their `schema.json` files. Thus,
existing tasks configured with certain executors will automatically
become continuous.
## Related Issue(s)
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merged. -->
Fixes #
