Bump flags from 0.1.3 to 0.2.1 in /webdriver (#4000)

Bumps [flags](https://github.com/dpup/node-flags) from 0.1.3 to 0.2.1.
- [Release notes](https://github.com/dpup/node-flags/releases)
- [Commits](https://github.com/dpup/node-flags/commits/v0.2.1)

---
updated-dependencies:
- dependency-name: flags
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

webdriver/package.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "chai": "5.1.1",
     "debug": "4.3.7",
-    "flags": "0.1.3",
+    "flags": "0.2.1",
     "mocha": "10.7.3",
     "puppeteer": "23.3.0"
   }