Update webauthn requirement from ==2.0.* to ==2.1.* (#4022)

Updates the requirements on [webauthn](https://github.com/duo-labs/py_webauthn) to permit the latest version.
- [Release notes](https://github.com/duo-labs/py_webauthn/releases)
- [Changelog](https://github.com/duo-labs/py_webauthn/blob/master/CHANGELOG.md)
- [Commits](https://github.com/duo-labs/py_webauthn/compare/v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: webauthn
  dependency-type: direct:production
...

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pyproject.toml

@@ -102,7 +102,7 @@ dependencies = [
   "tqdm==4.*",
   "vat_moss_forked==2020.3.20.0.11.0",
   "vobject==0.9.*",
-  "webauthn==2.0.*",
+  "webauthn==2.1.*",
   "zeep==4.2.*"
 ]