feat: upgrade deps, new prefix option, cleaning and typos

[GreyXor]

Hello, this PR contains a few improvements:

• An update of all dependencies
• A few typographical corrections
• use of any rather than interface{} or http.NoBody, rather than nil
• A new prefix option

This new prefix option is useful when you have an API whose server spec contains a subfolder. In my case, it's /api. But as I register my api with server.RegisterHandlersWithBaseURL(s.EchoServer, server.NewStrictHandler(s.APIService.API, nil), "/api").
The prefix is not visible to the router, so the validator can't see it either. Setting this new option to /api virtually removes the prefix. And makes the validator work properly.

close: #11

[GreyXor]

@jamietanna gentle ping, can I have your input here ?

[GreyXor]

@jamietanna hello ?

[jamietanna]

Hey @GreyXor apologies for the delay!

Out of interest, how's your testing for this going so far? I've tried to take the Prefix functionality and add it into the net/http middleware, but it doesn't seem to be working - oapi-codegen/nethttp-middleware#40 doesn't correctly map the request URL path:

-want:
+got:
 # A request that is well-formed is passed through to the Handler
-POST /public-api/v1/resource was called
-Received an HTTP 204 response. Expected HTTP 204
+Received an HTTP 404 response. Expected HTTP 204
+Response body: no matching operation was found

[GreyXor]

Hello thanks,
yes my tests doing well. i'm using this since 1 year without any issues. working as expected to me. I'm not sure about your nethttp-middleware. I'll check later