[Tests] replace aud with npm audit

Author: ljharb

package.json

@@ -11,7 +11,6 @@
 	},
 	"devDependencies": {
 		"@ljharb/eslint-config": "^21.1.0",
-		"aud": "^2.0.4",
 		"auto-changelog": "^2.4.0",
 		"eslint": "=8.8.0",
 		"in-publish": "^2.0.1",
@@ -27,7 +26,7 @@
 		"pretest": "npm run lint",
 		"tests-only": "tape 'test/**/*.js'",
 		"test": "npm run tests-only",
-		"posttest": "aud --production",
+		"posttest": "npx npm@'>= 10.2' audit --production",
 		"version": "auto-changelog && git add CHANGELOG.md",
 		"postversion": "auto-changelog && git add CHANGELOG.md && git commit --no-edit --amend && git tag -f \"v$(node -e \"console.log(require('./package.json').version)\")\""
 	},