fix: Use macos-15 instead of macos-13

Author: jcs090218

.github/workflows/main.yml

@@ -27,7 +27,7 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - macos-13
+          - macos-15
           - ubuntu-22.04
         emacs-version:
           - '28.2'
@@ -42,7 +42,7 @@ jobs:
             emacs-version: '28.2'
             # Cross build
             target: aarch64-unknown-linux-gnu
-          - os: macos-13
+          - os: macos-15
             emacs-version: '28.2'
             # Cross build
             target: aarch64-apple-darwin

.github/workflows/release.yml

@@ -19,12 +19,12 @@ jobs:
       matrix:
         include:
           # TODO: Get host platform from somewher instead of specifying it explicitly here.
-          - os: macos-13
+          - os: macos-15
             bundle_os: macos
             emacs-version: '28.2'
             ext: dylib
             host: x86_64-apple-darwin
-          - os: macos-13
+          - os: macos-15
             bundle_os: macos
             emacs-version: '28.2'
             ext: dylib