Missing codes in the errors union

[pstachula-dev]

Description

It seems that the library generated error types and returns only the first error code instead of the union for the other types. When we have declared other error codes for 401 and 404, only 401 is returned.

Reproduction

           200: {
                headers: {
                    [name: string]: unknown;
                };
                content: {
                    "application/json": components["schemas"]["CatFact"];
                };
            };

            /** @description error 401 */
            401: {
                headers: {
                    [name: string]: unknown;
                };
                content: {
                    "application/json": components["schemas"]["ErrorUnauthorized"];
                };
            };
            /** @description error 403 */
            403: {
                headers: {
                    [name: string]: unknown;
                };
                content: {
                    "application/json": components["schemas"]["ErrorForbidden"];
                };
            };
            /** @description not found */
            404: {
                headers: {
                    [name: string]: unknown;
                };
                content: {
                    "application/json": components["schemas"]["Error"];
                };
            };

Full schema: https://pastebin.com/aBhmzfE2

As far as I can see, the errors are sorted in ascending order and only the first one is taken into account, the others are omitted.

Expected result

Union of all errors 401, 403, 403...

Checklist

• [ ] I’m willing to open a PR (see CONTRIBUTING.md)