update `Cache-Control` for tracker script

next.config.js

@@ -57,6 +57,16 @@ module.exports = {
         source: '/:path*',
         headers,
       },
+      {
+        source: '/umami.js',
+        headers: [
+          ...headers,
+          {
+            key: 'Cache-Control',
+            value: 'public, max-age=86400',
+          },
+        ],
+      },
     ];
   },
   async rewrites() {