feat: Allow unverified openapi calls

[richardpaulhudson]

Proposed Changes:

With the existing code, there is no way of disabling SSL verification for OpenAPI function calls. This PR fixes this by introducing an optional initialization parameter that corresponds exactly to the openapi3 initialization parameter and that is fed through to it.

How did you test it?

I ran and fixed the unit tests and also confirmed that the fix works as intended with my own client code.

Notes for the reviewer

This page will need updating, but I was unsure how to do so to make the documentation change sync with the code change.

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

---

[email protected] seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}