flake: TestWorkspaceBuildsProvisionerState/Orphan/OK

[spikecurtis]

    workspacebuilds_test.go:495: got workspace build job f6700857-ce9f-4540-b5fc-54c9e00146ec
    workspacebuilds_test.go:498: 
        	Error Trace:	/home/runner/work/coder/coder/coderd/workspacebuilds_test.go:498
        	Error:      	Should be true
        	Test:       	TestWorkspaceBuildsProvisionerState/Orphan/OK

seen here: https://github.com/coder/coder/actions/runs/16165369023/job/45625928410