refactor: hide node warnings

taken from here: https://www.stefanjudis.com/snippets/how-to-import-json-files-in-es-modules-node-js/#option-1%3A-read-and-parse-json-files-yourself

this is the best way i could think of to avoid the experimental import assertions

src/cli.ts

@@ -1,14 +1,16 @@
 #! /usr/bin/env node
+import { readFile } from 'node:fs/promises';
+
 import * as core from '@actions/core';
 import chalk from 'chalk';
 import updateNotifier from 'update-notifier-cjs';
 
-import pkg from '../package.json' assert { type: 'json' };
-
 import { isGHA } from './lib/isCI.js';
 
 import rdme from './index.js';
 
+const pkg = JSON.parse(await readFile(new URL('../../package.json', import.meta.url), { encoding: 'utf-8' }));
+
 updateNotifier({ pkg }).notify();
 
 rdme(process.argv.slice(2))

src/index.ts

@@ -1,4 +1,5 @@
 /* eslint-disable import/first, import/order, no-underscore-dangle */
+import { readFile } from 'node:fs/promises';
 import path from 'node:path';
 
 import chalk from 'chalk';
@@ -20,7 +21,7 @@ import config from 'config';
 
 process.env.NODE_CONFIG_DIR = configDir;
 
-import pkg from '../package.json' assert { type: 'json' };
+const pkg = JSON.parse(await readFile(new URL('../../package.json', import.meta.url), { encoding: 'utf-8' }));
 
 const { version } = pkg;
 

src/lib/configstore.ts

@@ -1,6 +1,8 @@
+import { readFile } from 'node:fs/promises';
+
 import Configstore from 'configstore';
 
-import pkg from '../../package.json' assert { type: 'json' };
+const pkg = JSON.parse(await readFile(new URL('../../package.json', import.meta.url), { encoding: 'utf-8' }));
 
 const configstore = new Configstore(
   /**

src/lib/getPkgVersion.ts

@@ -1,11 +1,13 @@
+import { readFile } from 'node:fs/promises';
+
 // eslint-disable-next-line no-restricted-imports
 import fetch from 'node-fetch';
 import semver from 'semver';
 
-import pkg from '../../package.json' assert { type: 'json' };
-
 import { error } from './logger.js';
 
+const pkg = JSON.parse(await readFile(new URL('../../package.json', import.meta.url), { encoding: 'utf-8' }));
+
 const registryUrl = 'https://registry.npmjs.com/rdme';
 
 /**

src/lib/readmeAPIFetch.ts

@@ -1,19 +1,20 @@
 import type { SpecFileType } from './prepareOas.js';
 import type { RequestInit, Response } from 'node-fetch';
 
+import { readFile } from 'node:fs/promises';
 import path from 'node:path';
 
 import config from 'config';
 import mime from 'mime-types';
 import nodeFetch, { Headers } from 'node-fetch'; // eslint-disable-line no-restricted-imports
 
-import pkg from '../../package.json' assert { type: 'json' };
-
 import APIError from './apiError.js';
 import { git } from './createGHA/index.js';
 import isCI, { ciName, isGHA } from './isCI.js';
 import { debug, warn } from './logger.js';
 
+const pkg = JSON.parse(await readFile(new URL('../../package.json', import.meta.url), { encoding: 'utf-8' }));
+
 const SUCCESS_NO_CONTENT = 204;
 
 /**