[Tests] replace aud with npm audit

Author: ljharb

package.json

@@ -13,7 +13,7 @@
 		"test:all": "npm run test:index && npm run test:uglified",
 		"test:index": "node test",
 		"test:uglified": "node test/uglified",
-		"posttest": "aud --production",
+		"posttest": "npx npm@\">= 10.2\" audit --production",
 		"lint": "eslint --ext=js,mjs .",
 		"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)\")\""
@@ -44,7 +44,6 @@
 	},
 	"devDependencies": {
 		"@ljharb/eslint-config": "^21.0.0",
-		"aud": "^2.0.1",
 		"auto-changelog": "^2.4.0",
 		"eslint": "=8.8.0",
 		"in-publish": "^2.0.1",