We changed the code to verify that the type supports dry-run, but we've
only done it for patch, not for create, which means that people can
create objects they don't want to create. We can actually simplify the
code by moving the check much earlier in the method, which fixes all
possible bug like this.
For each object, first we verify if they have a dryRun parameter in the
openapi for the patch verb. If we can't find the object, we assume that
CRD will behave like "namespace". So we check if namespace supports
dryRun. If it does, then we verify that the resource is a CRD.
