Add support for job delete operation

[v-elegacheva]

add job delete operation support

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Pull request overview

Adds first-class support for deleting Azure Quantum jobs through the Workspace API, and wires that operation into the Cirq integration so cirq.Job.delete() uses the delete operation instead of cancel.

Changes:

• Add Workspace.delete_job() that calls the underlying jobs client delete operation.
• Update azure.quantum.cirq.Job.delete() to invoke workspace.delete_job(...).
• Add a unit test intended to validate the new delete behavior.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
azure-quantum/azure/quantum/workspace.py	Introduces delete_job() API on Workspace calling the jobs delete operation.
azure-quantum/azure/quantum/cirq/job.py	Switches Cirq job deletion to use Workspace.delete_job() instead of cancellation.
azure-quantum/tests/test_workspace.py	Adds a new test case covering job delete behavior.

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[rigidit]

would you like to update also
azure-quantum\azure\quantum\cirq\targets\ionq.py?
maybe other places where delete operation would be appropriate?

[rigidit]

so when we delete the job the status should be "Cancelled"? what's the difference with cancel operation then?