pyproject.toml needs to be updated. Error while installing on Frappe Cloud

Hi,

While installing it on Frappe Cloud got this error:

Could not find compatible Frappe version in pyproject.toml file. Please ensure 'tool.bench.frappe-dependencies.frappe' is set.

I believe you need to add something like this to the pyproject.toml file:
```

[tool.bench.frappe-dependencies]
frappe = ">=15.0.0,<17.0.0"
```