Update PIR test runner

[samsymons]

Task/Issue URL: https://app.asana.com/0/1199230911884351/1208793631611370/f Tech Design URL: CC:

Description:

This PR updates the runner image used by the PIR tests.

The PIR tests are currently using Xcode 14, which will no longer work due to GRDB being built with a newer SDK.

Optional E2E tests:

• [x] Run PIR E2E tests Check this to run the Personal Information Removal end to end tests. If updating CCF, or any PIR related code, tick this.

Steps to test this PR:

1. Check that the PIR E2E test run associated with this PR has succeeded

Definition of Done:

• [ ] Does this PR satisfy our Definition of Done?

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Internal references:

Pull Request Review Checklist Software Engineering Expectations Technical Design Template Pull Request Documentation