Use supported macOS artifact runners

Author: awksedgreep

.github/workflows/release-artifacts.yml

@@ -19,9 +19,9 @@ jobs:
             target: x86_64-unknown-linux-gnu
           - runner: ubuntu-24.04-arm
             target: aarch64-unknown-linux-gnu
-          - runner: macos-13
+          - runner: macos-15-intel
             target: x86_64-apple-darwin
-          - runner: macos-14
+          - runner: macos-15
             target: aarch64-apple-darwin
     runs-on: ${{ matrix.runner }}
     steps: