Issues GraphQL API needs to support TASK issue_type in ENUM
IssueTypeEnum excludes TASK
from the possible issue types. This exclusion was added as the same enum is used in the issue input so no issue of type cask can be created via the issues API.
AS this Enum does not have the Task value, it will raise an error if we ever fetch the type field for an issue of typ task that can only be created if the work_items
feature flag is enabled, but since we plan to make it GA soon, we should fix this by filtering out the task issue type in the issue create/update service if it's provided and the FF is not enabled.