Commit 3f47b60c0 for imagemagick.org

commit 3f47b60c001551589e0e18add8347ed5b7d5c2c8
Author: Dirk Lemstra <dirk@lemstra.org>
Date:   Thu Dec 11 08:39:26 2025 +0100

    Switch to macos-15-intel for the x64 MacOS build.

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 77eaae239..5c67bf379 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -69,8 +69,8 @@ jobs:
           make install

   build_macos:
-    name: Build MacOS
-    runs-on: macos-13
+    name: Build MacOS x64
+    runs-on: macos-15-intel

     steps:
       - uses: actions/checkout@v6