Get deployment url after successful deploy

**Is your feature request related to a problem? Please describe.**
Since the Azure/static-web-apps-deploy action is a container action and thus doesn't work in windows workflows, I've implemented the deployment to azure using this cli. In this setting, it would be nice to get the url where the site is deployed from `swa deploy` to e.g show it as a comment or start api tests.

**Describe the solution you'd like**
`swa deploy` should return the deployment url (if deployment is successful). For additional convince, it would be nice if `swa deploy` would print the deployment url as a [job output](https://docs.github.com/en/actions/using-jobs/defining-outputs-for-jobs) `::set-output deployment_url=` if the `ci` env variable is present.

**Describe alternatives you've considered**
Manual scraping of the output.

`swa deploy` コマンドから開始し、デプロイが成功した場合の処理経路とその出力形式を追跡します。デプロイ URL を返せること、また `ci` が存在する場合にジョブの出力として公開できることを確認します。成功したデプロイ後にこの両方の動作が機能すれば完了です。

索引モデルが issue の本文から書いたものです。