change 'fs' to 'node:fs'

src/main.js

@@ -2,7 +2,7 @@
 
 'use strict';
 
-import fs from 'fs';
+import fs from 'node:fs';
 import path from 'path';
 import {fileURLToPath} from 'url';
 import request from 'request';

src/serve_data.js

@@ -1,6 +1,6 @@
 'use strict';
 
-import fs from 'fs';
+import fs from 'node:fs';
 import path from 'path';
 import zlib from 'zlib';
 

src/serve_font.js

@@ -1,7 +1,7 @@
 'use strict';
 
 import express from 'express';
-import fs from 'fs';
+import fs from 'node:fs';
 import path from 'path';
 
 import {getFontsPbf} from './utils.js';

src/serve_rendered.js

@@ -1,7 +1,7 @@
 'use strict';
 
 import advancedPool from 'advanced-pool';
-import fs from 'fs';
+import fs from 'node:fs';
 import path from 'path';
 import url from 'url';
 import util from 'util';

src/serve_style.js

@@ -1,7 +1,7 @@
 'use strict';
 
 import path from 'path';
-import fs from 'fs';
+import fs from 'node:fs';
 
 import clone from 'clone';
 import express from 'express';

src/server.js

@@ -5,7 +5,7 @@ import os from 'os';
 process.env.UV_THREADPOOL_SIZE =
     Math.ceil(Math.max(4, os.cpus().length * 1.5));
 
-import fs from 'fs';
+import fs from 'node:fs';
 import path from 'path';
 
 import chokidar from 'chokidar';

src/utils.js

@@ -1,7 +1,7 @@
 'use strict';
 
 import path from 'path';
-import fs from 'fs';
+import fs from 'node:fs';
 
 import clone from 'clone';
 import glyphCompose from '@mapbox/glyph-pbf-composite';