Submit app to Homebrew package manager

### Prerequisites

- [x] I have checked the [Knowledge Base](https://adguard-dns.io/kb/) and the [Discussions](https://github.com/AdguardTeam/AdGuardDNSCLI/discussions) and found no answer

- [x] I have searched other issues and found no duplicates

- [x] I want to request a feature or enhancement and not ask a question

### The problem

Homebrew is a convenient way to install and update CLI tools on macOS by default. [Linux is also supported](https://docs.brew.sh/Homebrew-on-Linux).

### Proposed solution

Submit AdGuard VPN CLI in the Homebrew package manager.

Documentation: https://docs.brew.sh/Adding-Software-to-Homebrew

### Alternatives considered and additional information

_No response_