Submission Template Target Year Change Saga: API Request and State Update

The function `submissionReqTemplTargetYearChangeSage` is a generator function that listens for the `submissionTemplateTargetYearChange` action and handles it by making an API request and dispatching the `setSubmissionTemplateTargetYearChange` action with the response data. If an error occurs during the API request, it dispatches the `openModal` action with the error message.