Commands: `kuma label get`

[Zerka30]

Description: Add the kuma label get command to the KumaCompanion tool, allowing users to retrieve detailed information about a specific label in Uptime Kuma. This command will provide users with insights into the label's properties, such as its name, description, and the monitors it is linked to. With this feature, users can easily access specific label details and manage their monitoring configurations more effectively. The addition of kuma label get will enhance the tool's functionality and streamline label-related operations in Uptime Kuma.