[Tests] use npm audit instead of aud

Author: ljharb

package.json

@@ -27,7 +27,7 @@
  "prepublishOnly": "safe-publish-latest && npm run lint && npm run flow && npm run jest",
  "pretest": "npm run lint:fix && npm run flow",
  "test": "npm run jest",
- "posttest": "aud --production",
+ "posttest": "npx npm@'>=10.2' audit --production",
  "test:ci": "npm run jest -- --ci --runInBand",
  "pretest:examples": "npm run build",
  "test:examples": "npm run test-example:legacy && npm run test-example:flat-esm && npm run test-example:flat-cjs",
@@ -47,7 +47,6 @@
  "@babel/eslint-parser": "^7.25.1",
  "@babel/plugin-transform-flow-strip-types": "^7.25.2",
  "@babel/register": "^7.24.6",
- "aud": "^2.0.4",
  "auto-changelog": "^2.4.0",
  "babel-jest": "^24.9.0",
  "babel-plugin-add-module-exports": "^1.0.4",