[Tests] use npm audit instead of aud

Author: ljharb

package.json

@@ -46,7 +46,6 @@
 	"devDependencies": {
 		"@ljharb/eslint-config": "^21.1.1",
 		"array.prototype.flatmap": "^1.3.2",
-		"aud": "^2.0.4",
 		"auto-changelog": "^2.4.0",
 		"concat-stream": "^1.6.2",
 		"cross-env": "^2.0.1",
@@ -78,7 +77,7 @@
 		"lint": "eslint --ext .js,.cjs,.mjs . bin/*",
 		"pretest": "npm run lint",
 		"test": "npm-run-posix-or-windows tests-only",
-		"posttest": "aud --production",
+		"posttest": "npx npm@'>=10.2' audit --production",
 		"tests-only": "cross-env NODE_OPTIONS='--no-warnings' nyc tap 'test/*.js'",
 		"tests-only:windows": "cross-env NODE_OPTIONS='--no-warnings' nyc node_modules\\tap\\bin\\run.js test/*.js",
 		"test:example": "find example -name '*.js' | grep -v fail | grep -v static | xargs tap"