github:update-repository-secret missing parameter to receive the new value

[ecairol]

The command team51 github:update-repository-secret never asks the user for the new value to be updated.

One of the reasons is that, for security reasons, it actually sets the name of a constant that exists on OpsOasis, however, it should also support inputting the secret directly in plaintext.

In the code, the only place where $secret_value is set is on line 92:

$this->secret_value = 'GH_BOT_TOKEN' === $this->secret_name ? 'WPCOMSP_GITHUB_API_TOKEN' : $this->secret_name; // Legacy support.

We might want to make the secret_name argument an --option that receives a value. But there are security concerns that need to be understood first.

Slack conversation.