Order in options

```fsharp
step(
name = "Cache artifacts",
uses = "actions/cache@v4",
options = Map.ofList [
"path", "artifacts"
"key", $"{platform}.{architecture}." + "${{ hashFiles('.github/cache-key.json') }}"
]
)
```

This leads to
```yml
- name: Cache artifacts
uses: actions/cache@v4
with:
key: linux.x86-64.${{ hashFiles('.github/cache-key.json') }}
path: artifacts
```

The order of options is reversed. We should consider an order-preserving variant if possible.