VISTAAR: Sandbox env Infra set up and integration

### Description:
- Support 3 NPs:
- Seeker: Samagra and Digital Green
- Provider: Samagra and Digital Green
- Support GCP/Tekdi to deploy ONIX on Ministry procured infrastructure and ensure it is working (Postman testing successful).
- Help NPs integrate with the new VISTAAR network with ONIX upgrade deviation (Successful end-to-end transactions for the use case).
- Tech Plan: [Tech Plan Spreadsheet](https://docs.google.com/spreadsheets/d/1UbMtoLIpHPxP_Vvdn0VKq898iz8GSQ7Nyd8qcv998Ro/edit?usp=sharing)

### Goals:
- [ ] Deploy ONIX on Ministry procured infrastructure.
- [ ] Ensure successful Postman testing.
- [ ] Integrate NPs with the VISTAAR network with ONIX upgrade deviation.
- [ ] Achieve successful end-to-end transactions for the use case.

### Expected Outcome:
- ONIX deployed and operational on Ministry procured infrastructure.
- Successful Postman testing.
- NPs integrated with the VISTAAR network with ONIX upgrade deviation.
- Successful end-to-end transactions for the use case.

### Acceptance Criteria:
- [ ] ONIX deployment completed on Ministry infrastructure.
- [ ] Postman testing confirmed successful.
- [ ] NPs integrated with VISTAAR network.
- [ ] End-to-end transactions verified and successful.

### Mockups / Wireframes:
NA

### Product Name:
Beckn

### Domain:
AgriNet

### Tech Skills Needed:
GCP, ONIX, Beckn Protocol, Integration Testing

### Complexity:
High

### Category:
Setup & Integration

### Sub Category:
Sandbox Environment