feat(go): Add support for file upload dynamic snippets

[amckinney]

This updates Go's DynamicSnippetsGenerator so that it supports file upload snippets, and considers both the inlineFileProperties and inlinePathParameters configuration options.

For example, given the following request:

{
  endpoint: {
      method: "POST",
      path: "/just-file-with-query-params"
  },
  auth: undefined,
  pathParameters: undefined,
  queryParameters: {
      integer: 42,
      maybeString: "exists"
  },
  headers: undefined,
  requestBody: {
      file: "Hello, world!"
  }
}

The corresponding Go snippet with inlineFileProperties is shown below:

package example

import (
	context "context"
	acme "github.com/acme/acme-go"
	client "github.com/acme/acme-go/client"
	strings "strings"
)

func do() {
	client := client.NewClient()
	client.Service.JustFileWithQueryParams(
		context.TODO(),
		&acme.JustFileWithQueryParamsRequet{
			Integer: 42,
			MaybeString: acme.String(
				"exists",
			),
			File: strings.NewReader(
				"Hello, world!",
			),
		},
	)
}

[github-actions]

🌿 Preview your docs: https://fern-preview-99ff8e8e-461e-4abd-b6ad-8f1edd22cb78.docs.buildwithfern.com/learn