github/workflows/cd: Add AArch64 macOS build

Author: zaeleus

.github/workflows/cd.yml

@@ -26,6 +26,7 @@ jobs:
     strategy:
       matrix:
         include:
+          - { os: macos-15, target: aarch64-apple-darwin }
           - { os: macos-15-intel, target: x86_64-apple-darwin }
           - { os: windows-2022, target: x86_64-pc-windows-msvc }
           - { os: ubuntu-22.04, target: x86_64-unknown-linux-gnu }