Add Winget Releaser workflow

[sitiom]

This action automatically generates manifests for WinGet Community Repository (microsoft/winget-pkgs) and submits them.

I have already created a PR to add Sharik to Winget; this workflow will be used to update it.

Before merging this:

1. Add a classic PAT with public_repo scope as a repository secret named WINGET_TOKEN. You can go to this URL to create it: https://github.com/settings/tokens/new?scopes=public_repo

2. Fork https://github.com/microsoft/winget-pkgs under @marchellodev. The action will use that fork for making a branch and creating a PR with the upstream winget-pkgs repository on every release.
3. Use Pull to ensure the fork is constantly updated.

If you would like to read about this action further, the documentation and source code is available here.

If you want to see an example of a PR created using this action, see microsoft/winget-pkgs/pulls (Pull request has been created with WinGet Releaser).