[Schema Inaccuracy] Wrong typed `default` values are used in `string` type.

Schema Inaccuracy

{
  "type": "string",
  "description": "Specifies whether this release should be set as the latest release for the repository. Drafts and prereleases cannot be set as latest. Defaults to `true` for newly published releases. `legacy` specifies that the latest release should be determined based on the release creation date and higher semantic version.",
  "enum": [
    "true",
    "false",
    "legacy"
  ],
  "default": true
}

The default value must be "true" considering its type and enum properties, but boolean value being used.

Here is the detailed paths:

• "$input.paths[\"/repos/{owner}/{repo}/releases\"].post.requestBody.content[\"application/json\"].schema.properties.make_latest[\"default\"]"
• "$input.paths[\"/repos/{owner}/{repo}/releases/{release_id}\"].patch.requestBody.content[\"application/json\"].schema.properties.make_latest[\"default\"]"

Expected

Change the true default value to "true" as string type.

Reproduction Steps

Visit one of below link, and click "execute" button. Then Github OpenAPI documents would be validated.

• descriptions/api.github.com/api.github.com.json
• descriptions/ghes-3.14/ghes-3.14.json
• descriptions-next/ghes-3.14/ghes-3.14.json