Allow ruby_http_client 3.5.0 in version range

[mkilling]

Issue Summary

sendgrid-ruby 6.1.0 caused this issue sendgrid/ruby-http-client#117 to appear in our production environment. ruby-http-client has recently fixed the issue in version 3.5.0, but the current sendgrid-ruby release 6.1.1 (released at about the same time) still only allows for ruby-http-client ~> 3.4.0.

Steps to Reproduce

1. Install sendgrid-ruby 6.1.1
2. Post an array to the Sendgrid API (see code snippet
3. Exception: undefined method bytesize' for #Array:0x00007f11061d84e0 (see Gem Release 6.1.0 Passing Post Body Results in Error ruby-http-client#117)

Code Snippet

SendGrid::API.new(api_key: API_KEY).client.contactdb.recipients.post(request_body: [])

Exception/Log

undefined method bytesize' for #Array:0x00007f11061d84e0

Technical details:

• sendgrid-ruby version: 6.1.1
• ruby version: 2.5.3

[childish-sambino]

Yup, looks like an issue with the version constraint. We should be allowing minor version bumps. Working on PR to address this.