Update macOS version in build workflow

Author: bvernoux

.github/workflows/build.yml

@@ -55,7 +55,7 @@ jobs:
             name: "macOS-ARM64"
             platform: "macos"
             arch: "arm64"
-          - os: macos-13
+          - os: macos-15-intel
             name: "macOS-x86_64"
             platform: "macos"
             arch: "x86_64"