fix: replace deprecated macos-13 runner with macos-latest in release workflow

macos-13 runners have been deprecated by GitHub Actions, causing the
v0.1.0 release build to fail. Using macos-latest with target: x86_64
enables cross-compilation for Intel Macs on Apple Silicon runners.

Author: YuminosukeSato

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
             target: aarch64
           - os: macos-14
             target: aarch64
-          - os: macos-13
+          - os: macos-latest
             target: x86_64
           - os: windows-latest
             target: x64