Proposed JSON Support in Box CLI for Simplified Task Configuration

### Is your feature request related to a problem? Please describe.
We are using the Box CLI as part of our CI/CD pipeline and have encountered a critical limitation that is affecting our workflow:
Core Issue:
・The Box CLI can only handle one profile at a time on a single machine, and CLI environments can only be configured on a per-machine login user basis.
This core issue leads to a specific problem:
・Inability to Run Concurrent Jobs: Due to this limitation, it's currently unfeasible to run two Box access jobs at the same time while managing their respective environments (from adding to deleting).

### Describe the solution you'd like
・Simplify Task Setup: To address this challenge, we would greatly benefit from the ability to specify configurations using a JSON file as an argument, similar to what we can do with the Python SDK.
The limitation significantly complicates our CI/CD processes. We would greatly appreciate it if this issue and the corresponding improvement could be addressed in future updates.

### Describe alternatives you've considered

### Additional context