Switch to macos-15-intel

Author: giarc3

.github/workflows/publish.yaml

@@ -18,7 +18,7 @@ jobs:
           - 22
           - 24
         system:
-          - os: macos-13
+          - os: macos-15-intel
             target: x86_64-apple-darwin
             arch: x64
           - os: ubuntu-24.04

.github/workflows/typescript-napi-ci.yaml

@@ -22,7 +22,7 @@ jobs:
           - 22
           - 24
         system:
-          - os: macos-13
+          - os: macos-15-intel
             target: x86_64-apple-darwin
             arch: x64
           - os: ubuntu-24.04