[Tests] replace aud with npm audit

Author: ljharb

package.json

@@ -25,7 +25,7 @@
 		"prepublish": "not-in-publish || npm run prepublishOnly",
 		"pretest": "npm run lint",
 		"test": "npm run tests-only",
-		"posttest": "aud --production",
+		"posttest": "npx npm@'>= 10.2' audit --production",
 		"tests-only": "nyc tape 'test/**/*.js'",
 		"prelint": "evalmd README.md",
 		"lint": "eslint --ext=js,mjs .",
@@ -57,7 +57,6 @@
 	"devDependencies": {
 		"@es-shims/api": "^2.4.2",
 		"@ljharb/eslint-config": "^21.1.0",
-		"aud": "^2.0.4",
 		"auto-changelog": "^2.4.0",
 		"eslint": "=8.8.0",
 		"evalmd": "^0.0.19",