Bump luxon from 1.28.0 to 1.28.1 in /frontend

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: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

frontend/package.json

@@ -14,7 +14,7 @@
     "apexcharts": "^3.25.0",
     "core-js": "^3.6.5",
     "js-cookie": "^2.2.1",
-    "luxon": "^1.26.0",
+    "luxon": "^1.28.1",
     "vee-validate": "^3.4.5",
     "vue": "^2.6.14",
     "vue-apexcharts": "^1.6.0",

frontend/yarn.lock

@@ -5148,10 +5148,10 @@ lru-cache@^6.0.0:
   dependencies:
     yallist "^4.0.0"
 
-luxon@^1.26.0:
-  version "1.28.0"
-  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.28.0.tgz#e7f96daad3938c06a62de0fb027115d251251fbf"
-  integrity sha512-TfTiyvZhwBYM/7QdAVDh+7dBTBA29v4ik0Ce9zda3Mnf8on1S5KJI8P2jKFZ8+5C0jhmr0KwJEO/Wdpm0VeWJQ==
+luxon@^1.28.1:
+  version "1.28.1"
+  resolved "https://registry.yarnpkg.com/luxon/-/luxon-1.28.1.tgz#528cdf3624a54506d710290a2341aa8e6e6c61b0"
+  integrity sha512-gYHAa180mKrNIUJCbwpmD0aTu9kV0dREDrwNnuyFAsO1Wt0EVYSZelPnJlbj9HplzXX/YWXHFTL45kvZ53M0pw==
 
 magic-string@^0.25.7:
   version "0.25.9"