BREAKING CHANGE: `success` and `fail` hooks are now enabled by default
In order to disable the `@semantic-release/github` plugin for the `success` and `fail` hook, the corresponding options have to be set to `false` in the **semantic-release** configuration:
```json
{
"release": {
"success": false,
"fail": false
}
}
```
Users who do not use the `@semantic-release/github` plugin, should disable it in the `success` and `fail` by setting the corresponding options to `false` or to alternative plugin providing `success` and `fail` hooks.