chore: use `@std` import instead of `@test_util/std` (#22398)

This PR:
1. Replaces `@test_util/std`-prefixed imports with `@std`.
2. Adds `@std/` import map entries to a few `deno.json` files.

1 files changed, 3 insertions, 3 deletions

diff --git a/tests/unit_node/http_test.ts b/tests/unit_node/http_test.ts
index 28e67ddad..1c3078558 100644
--- a/tests/unit_node/http_test.ts
+++ b/tests/unit_node/http_test.ts
@@ -3,12 +3,12 @@
 import EventEmitter from "node:events";
 import http, { type RequestOptions } from "node:http";
 import https from "node:https";
-import { assert, assertEquals, fail } from "@test_util/std/assert/mod.ts";
-import { assertSpyCalls, spy } from "@test_util/std/testing/mock.ts";
+import { assert, assertEquals, fail } from "@std/assert/mod.ts";
+import { assertSpyCalls, spy } from "@std/testing/mock.ts";
 
 import { gzip } from "node:zlib";
 import { Buffer } from "node:buffer";
-import { serve } from "@test_util/std/http/server.ts";
+import { serve } from "@std/http/server.ts";
 import { execCode } from "../unit/test_util.ts";
 
 Deno.test("[node/http listen]", async () => {