upgrade from deprecated macos intel runner

Author: ksunden

.github/workflows/wheels.yml

@@ -157,7 +157,7 @@ jobs:
             cibw_archs: "AMD64"
           - os: windows-11-arm
             cibw_archs: "ARM64"
-          - os: macos-13
+          - os: macos-15-intel
             cibw_archs: "x86_64"
           - os: macos-14
             cibw_archs: "arm64"