Can not write sentence case in when writing short description for change.

I configured the `subject-case` rule in `.commitlintrc.cjs` for using sentence case subject case like this:

```js
module.exports = {
extends: ['@commitlint/config-conventional'],
rules: {
'subject-case': [2, 'never', ['upper-case']],
},
}
```

and then I run the cz command to write a short description for change like this:

```text
Omit
```

but when I confirm to commit, cz command will change it to lower-case, it is unreasonable.

However, I commit it by using `git commit -m` command can pass the commitlint check, so the problem is not on the configuration.

Reproduce the issue with the shown `.commitlintrc.cjs` subject-case rule and the cz command, entering `Omit` as the short description. Compare the generated commit with one made using `git commit -m`; done means cz preserves the entered sentence case while the commitlint check still passes.

由索引模型根据 Issue 内容生成。