Update runner type to macos-14 in workflow (#2297)

Removing dependency on self-hosted macOS runners, in prep for migration to meta-pytorch org

Author: ZainRizvi

.github/workflows/build-wheels-m1.yml

@@ -48,5 +48,5 @@ jobs:
       post-script: ${{ matrix.post-script }}
       package-name: ${{ matrix.package-name }}
       smoke-test-script: ${{ matrix.smoke-test-script }}
-      runner-type: macos-m1-stable
+      runner-type: macos-14
       trigger-event: ${{ github.event_name }}