feat(minor): Change SERVER_URL validation to use z.url() (#233)

In the latest version of Zod (>4), `z.string().url()` is deprecated in favour of `z.url()`

Author: MattPua

frameworks/solid/add-ons/t3env/assets/src/env.ts

@@ -3,7 +3,7 @@ import { z } from "zod";
 
 export const env = createEnv({
   server: {
-    SERVER_URL: z.string().url().optional(),
+    SERVER_URL: z.url().optional(),
   },
 
   /**
@@ -36,4 +36,4 @@ export const env = createEnv({
    * explicitly specify this option as true.
    */
   emptyStringAsUndefined: true,
-});
+});