Adding a stale workflow check to the taskvalidator and code cleanup.

[agautam478]

What changed?

• Added a stale workflow check to the task validator.
• Added a delete workflow call if the workflow domain is deprecated or if the workflow is stale.
• Removed the call to task validator from the history layer as the plan is now to put it in the execution layer.

Upon detecting an error during the update process, the function call will be placed in the execution context to cover all workflow execution scenarios, ensuring a thorough and efficient approach to identifying and resolving corruption across the system.

Why?
These changes were made to complete the taskvalidation service and call in the correct place in future.
With the addition of this final check the core service can be considered ready an usable. We can move forwarding with calling the taskvalidation step in the next PR.

How did you test it?
Uni tests.

Potential risks

Release notes

Documentation Changes

[coveralls]

Pull Request Test Coverage Report for Build 018d2472-eae9-449d-a842-99d05034a694

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.03%) to 62.703%

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Totals
Change from base Build 018d2433-b5c1-4c3d-8a22-6b4c48143927:	0.03%
Covered Lines:	91881
Relevant Lines:	146534

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💛 - Coveralls