Vite handles versioning automatically. It recreates index.html in dist folder each time you run npm run build and generated css and js source paths inside include hash for versioning. index.html contents example:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <link rel="icon" href="/favicon.ico" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Vite App</title>
<link rel="stylesheet" href="/_assets/style.9e6be708.css">
</head>
<body>
  <div id="app"></div>
  
<script type="module" src="/_assets/index.4f723e4f.js"></script>
</body>
</html>