chore: se testcontext for test:infra (#4579)

Author: Uzlopak

test/infra/collect-a-sequence-of-code-points.js

@@ -1,11 +1,10 @@
 'use strict'
 
 const { test } = require('node:test')
-const assert = require('node:assert')
 
 const { collectASequenceOfCodePoints } = require('../../lib/web/infra')
 
-test('https://infra.spec.whatwg.org/#collect-a-sequence-of-code-points', () => {
+test('https://infra.spec.whatwg.org/#collect-a-sequence-of-code-points', (t) => {
   const input = 'text/plain;base64,'
   const position = { position: 0 }
   const result = collectASequenceOfCodePoints(
@@ -14,6 +13,6 @@ test('https://infra.spec.whatwg.org/#collect-a-sequence-of-code-points', () => {
     position
   )
 
-  assert.strictEqual(result, 'text/plain')
-  assert.strictEqual(position.position, input.indexOf(';'))
+  t.assert.strictEqual(result, 'text/plain')
+  t.assert.strictEqual(position.position, input.indexOf(';'))
 })