ci: cross-compile macos-x64 on macos-latest runner

.github/workflows/companion-release.yml

@@ -47,7 +47,7 @@ jobs:
   macos-x64:
     name: macOS x64
     if: contains(github.event.inputs.targets, 'macos-x64')
-    runs-on: macos-13
+    runs-on: macos-latest
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable