[provider]: increase ManifestServiceExposeHTTPOptions.MaxBodySize from uint32

[ishandhanani]

Describe the bug

• account address = akash1qymxrv5sk6xc4tv9ld9avf4gkq7wpuu5rtcajx
• The relevant part of the deploy.yaml is

    expose:
      - port: 8888
        as: 80
        to:    
          - global: true
        http_options:
          max_body_size: 4294967294 #old value was 5368709120. new value is MAX_uint32 - 1 for safety

We are trying to increase the upload size to a Jupyter Notebook instance to around 5GB. However, due to the uint32 limit, we cannot increase past ~4GB.

To Reproduce
Steps to reproduce the behavior:
Create an SDL with the http_options shown above. The cloudmos proxy throws

Status code was not success (422) : json: cannot unmarshal number 5368709120 into Go struct field ServiceExposeHTTPOptions.services.expose.httpOptions.maxBodySize of type uint32

Expected behavior
This is expected as the limit is uint32

Potential fix
Increase that field to uint64. The relevant code is here. Thank you!