Change how we handle certificates for reactor endpoints

[travjenkins]

Issue

When there is a call from the UI to reactors some users are getting this pop up on windows 11 machines:

This does not happen every single time. Some people only see it once or twice a day and others see it all the time. That might be tied to them clicking and selecting a certificate. Happening in both Brave and Chrome (however those are both chromium)

Fix Idea

It was mentioned in stand up that the endpoing does not require a certificate - but if one is provided then it will verify it (https://github.com/gazette/core/blob/master/server/server.go#L171). This can probably be rolled back and not verify as it is not required.

[jgraettinger]

#403