Correct typo of 'specify' on Policies tab of Threat Monitoring page

What does this MR do?

Corrects a typo in the UI on the Threat Monitoring Policies tab. The word typo is incorrectly spelled as speficy so it's being fixed to specify

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

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• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
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Security

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