build(deps): bump i18next in /frontend in the i18next group

Bumps the i18next group in /frontend with 1 update: [i18next](https://github.com/i18next/i18next).


Updates `i18next` from 25.3.2 to 25.3.6
- [Release notes](https://github.com/i18next/i18next/releases)
- [Changelog](https://github.com/i18next/i18next/blob/master/CHANGELOG.md)
- [Commits](https://github.com/i18next/i18next/compare/v25.3.2...v25.3.6)

---
updated-dependencies:
- dependency-name: i18next
  dependency-version: 25.3.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: i18next
...

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

frontend/package-lock.json

@@ -20,7 +20,7 @@
         "@zxcvbn-ts/language-common": "^3.0.4",
         "classnames": "^2.5.1",
         "date-fns": "^4.1.0",
-        "i18next": "^25.3.2",
+        "i18next": "^25.3.6",
         "react": "^19.1.1",
         "react-dom": "^19.1.1",
         "react-i18next": "^15.6.1",
@@ -8716,9 +8716,9 @@
       }
     },
     "node_modules/i18next": {
-      "version": "25.3.2",
-      "resolved": "https://registry.npmjs.org/i18next/-/i18next-25.3.2.tgz",
-      "integrity": "sha512-JSnbZDxRVbphc5jiptxr3o2zocy5dEqpVm9qCGdJwRNO+9saUJS0/u4LnM/13C23fUEWxAylPqKU/NpMV/IjqA==",
+      "version": "25.3.6",
+      "resolved": "https://registry.npmjs.org/i18next/-/i18next-25.3.6.tgz",
+      "integrity": "sha512-dThZ0CTCM3sUG/qS0ZtQYZQcUI6DtBN8yBHK+SKEqihPcEYmjVWh/YJ4luic73Iq6Uxhp6q7LJJntRK5+1t7jQ==",
       "funding": [
         {
           "type": "individual",

frontend/package.json

@@ -30,7 +30,7 @@
     "@zxcvbn-ts/language-common": "^3.0.4",
     "classnames": "^2.5.1",
     "date-fns": "^4.1.0",
-    "i18next": "^25.3.2",
+    "i18next": "^25.3.6",
     "react": "^19.1.1",
     "react-dom": "^19.1.1",
     "react-i18next": "^15.6.1",