ref(nextjs): Change url of parser base to make security scanners less sus (#14695)

Author: lforst

packages/nextjs/src/client/routing/appRouterRoutingInstrumentation.ts

@@ -129,7 +129,8 @@ export function appRouterInstrumentNavigation(client: Client): void {
 
 function transactionNameifyRouterArgument(target: string): string {
   try {
-    return new URL(target, 'http://some-random-base.com/').pathname;
+    // We provide an arbitrary base because we only care about the pathname and it makes URL parsing more resilient.
+    return new URL(target, 'http://example.com/').pathname;
   } catch {
     return '/';
   }