build(deps): bump luxon from 1.28.0 to 1.28.1 in /docs/op-stack

Bumps [luxon](https://github.com/moment/luxon) from 1.28.0 to 1.28.1.
- [Release notes](https://github.com/moment/luxon/releases)
- [Changelog](https://github.com/moment/luxon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/moment/luxon/compare/1.28.0...1.28.1)

---
updated-dependencies:
- dependency-name: luxon
  dependency-type: indirect
...
Signed-off-by: dependabot[bot] <support@github.com>

docs/op-stack/yarn.lock

@@ -7228,9 +7228,9 @@ lru-cache@^6.0.0:
     yallist "^4.0.0"
 
 luxon@^1.3.3:
-  version "1.28.0"
-  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.28.0.tgz#e7f96daad3938c06a62de0fb027115d251251fbf"
-  integrity sha512-TfTiyvZhwBYM/7QdAVDh+7dBTBA29v4ik0Ce9zda3Mnf8on1S5KJI8P2jKFZ8+5C0jhmr0KwJEO/Wdpm0VeWJQ==
+  version "1.28.1"
+  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.28.1.tgz#528cdf3624a54506d710290a2341aa8e6e6c61b0"
+  integrity sha512-gYHAa180mKrNIUJCbwpmD0aTu9kV0dREDrwNnuyFAsO1Wt0EVYSZelPnJlbj9HplzXX/YWXHFTL45kvZ53M0pw==
 
 magic-string@^0.25.0, magic-string@^0.25.7:
   version "0.25.7"