./build-macos.py builds noopt python

```
./build-macos.py --python cpython-3.10
```

creates a file

```
dist/cpython-3.10.16-aarch64-apple-darwin-noopt-20250114T1622.tar.zst
```

Noopt suggests it is build without optimizations? But logs mention `clang ... -O2`.

So this issue is about either:
- make build optimized by default
- or change the file name to indicate it is optimized