Merge pull request #106 from target/macos-15

Add macos-15 runner, drop macos-13

Author: colindean

.github/workflows/make-based-ci.yml

@@ -29,7 +29,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - macos-13
+          - macos-15
           - macos-14
     runs-on: ${{ matrix.os }}