fix: release marked as 'latest' despite make_latest: false

[Boshen]

fixes https://github.com/Boshen/action-gh-release/releases/tag/test-20490403435

To test, I enabled immutable releases, pushed a make_latest: false in https://github.com/Boshen/action-gh-release/actions/runs/20490520097/job/58881730816, the release https://github.com/Boshen/action-gh-release/releases/tag/test-20490520097 does not show the latest tag.

---

Ref: https://github.com/octokit/openapi-types.ts/blob/main/packages/openapi-types/types.d.ts

See make_latest for "repos/update-release":

  /**
   * Update a release
   * @description Users with push access to the repository can edit a release.
   */
  "repos/update-release": {
    parameters: {
      path: {
        owner: components["parameters"]["owner"];
        repo: components["parameters"]["repo"];
        release_id: components["parameters"]["release-id"];
      };
    };
    requestBody?: {
      content: {
        "application/json": {
          /** @description The name of the tag. */
          tag_name?: string;
          /** @description Specifies the commitish value that determines where the Git tag is created from. Can be any branch or commit SHA. Unused if the Git tag already exists. Default: the repository's default branch. */
          target_commitish?: string;
          /** @description The name of the release. */
          name?: string;
          /** @description Text describing the contents of the tag. */
          body?: string;
          /** @description `true` makes the release a draft, and `false` publishes the release. */
          draft?: boolean;
          /** @description `true` to identify the release as a prerelease, `false` to identify the release as a full release. */
          prerelease?: boolean;
          /**
           * @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.
           * @default true
           * @enum {string}
           */
          make_latest?: "true" | "false" | "legacy";
          /** @description If specified, a discussion of the specified category is created and linked to the release. The value must be a category that already exists in the repository. If there is already a discussion linked to the release, this parameter is ignored. For more information, see "[Managing categories for discussions in your repository](https://docs.github.com/discussions/managing-discussions-for-your-community/managing-categories-for-discussions-in-your-repository)." */
          discussion_category_name?: string;
        };
      };
    };
    responses: {
      /** @description Response */
      200: {
        content: {
          "application/json": components["schemas"]["release"];
        };
      };
      /** @description Not Found if the discussion category name is invalid */
      404: {
        content: {
          "application/json": components["schemas"]["basic-error"];
        };
      };
    };
  };

---

AI disclaimer: I used Claude to find and fix the bug, which produced the same result as #706