Update images
Diff gitlab-org/ci-cd/shared-runners/images/macstadium/orka@3940706f...4868ae8a
New images include:
- Latest macOS patches, Xcode and Xcode CLT
- Brew is up-to-date >= 10.15, frozen to the latest supported version <= 10.14
- Runner 15.0.0
Diff gitlab-org/ci-cd/shared-runners/images/macstadium/orka@3940706f...4868ae8a
New images include: