Fix validation of parameters requiring a body

[devkral]

Checklist

• The code has 100% test coverage.
• The documentation was properly created or updated (if applicable) following the correct guidelines and appropriate language.
• I branched out from the latest main or is a sub-branch.

Summary or description

• Fix data and payload special keyword arguments so they are allowed when another method than one without a body (HEAD, GET) is available,
• Fix validation of parameters requiring a body including Form
• Fix some warnings

[tarsil]

@devkral CI failing

[devkral]

yes, we need a rework. We should check that the params are optional in case of GET, HEAD and OPTIONS in methods. and apply this for Form parameters too.

[tarsil]

I will look at this when I have time. I can see some over complications already