feat: Use latest SendGrid HTTP Client

[adamnoto]

Fixes

Use latest HTTP client so that we can pass in http options.

Checklist

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• I have added tests that prove my fix is effective or that my feature works
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Closes #405

[thinkingserious]

Hello @saveav,

Thanks again for the PR!

We want to show our appreciation by sending you some swag. Could you please fill out this form so we can send it to you? Thanks!

Team SendGrid DX

[thinkingserious]

Hello @saveav,

Thanks again for the PR!

We appreciate your contribution and look forward to continued collaboration. Thanks!

Team SendGrid DX

[adamnoto]

@thinkingserious Thank you for your kindness.
Really appreciate : )