Update dependency i18next to v25 (#2122)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -77,7 +77,7 @@
     "express-session": "^1.18.2",
     "govuk-frontend": "^5.11.0",
     "helmet": "^8.0.0",
-    "i18next": "^24.1.2",
+    "i18next": "^25.0.0",
     "i18next-http-middleware": "^3.3.0",
     "jest-environment-jsdom": "^29.5.0",
     "jwt-decode": "^3.1.2",

yarn.lock

@@ -1566,12 +1566,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@babel/runtime@npm:^7.26.10":
-  version: 7.27.0
-  resolution: "@babel/runtime@npm:7.27.0"
-  dependencies:
-    regenerator-runtime: ^0.14.0
-  checksum: 3e73d9e65f76fad8f99802b5364c941f4a60c693b3eca66147bb0bfa54cf0fbe017232155e16e3fd83c0a049b51b8d7239efbd73626534abe8b54a6dd57dcb1b
+"@babel/runtime@npm:^7.27.6":
+  version: 7.28.2
+  resolution: "@babel/runtime@npm:7.28.2"
+  checksum: 8673eb2311752929f5b0167f42cff4cc1d5fadddd0394baca27d06c1618680ffcf95e9f01061f5c4dc3f6a32b6bbf500e7762c02dc22bcd273c2947b9774ddad
   languageName: node
   linkType: hard
 
@@ -7962,7 +7960,7 @@ __metadata:
     helmet: ^8.0.0
     html-webpack-plugin: ^5.5.1
     husky: ^9.0.0
-    i18next: ^24.1.2
+    i18next: ^25.0.0
     i18next-http-middleware: ^3.3.0
     jest: ^29.6.2
     jest-environment-jsdom: ^29.5.0
@@ -9568,17 +9566,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"i18next@npm:^24.1.2":
-  version: 24.2.3
-  resolution: "i18next@npm:24.2.3"
+"i18next@npm:^25.0.0":
+  version: 25.3.4
+  resolution: "i18next@npm:25.3.4"
   dependencies:
-    "@babel/runtime": ^7.26.10
+    "@babel/runtime": ^7.27.6
   peerDependencies:
     typescript: ^5
   peerDependenciesMeta:
     typescript:
       optional: true
-  checksum: e826e0267750ac51968cc7401ddeaf3f9747524e8f89f15baa8d54b5026a5272c1d7040831d9af2caea6abb06b7d088e60000c3f8b2df5a09159751cc232b151
+  checksum: d0f1f70ed5a3a33102ddcab5c3f208fccd5a178b02ec2509ab747616ae7b4b36cd166f525008837dceb51e58be9df58873e7793ffbdde0a0f9c143350a708080
   languageName: node
   linkType: hard
 
@@ -13970,13 +13968,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"regenerator-runtime@npm:^0.14.0":
-  version: 0.14.1
-  resolution: "regenerator-runtime@npm:0.14.1"
-  checksum: 9f57c93277b5585d3c83b0cf76be47b473ae8c6d9142a46ce8b0291a04bb2cf902059f0f8445dcabb3fb7378e5fe4bb4ea1e008876343d42e46d3b484534ce38
-  languageName: node
-  linkType: hard
-
 "regexp-match-indices@npm:1.0.2":
   version: 1.0.2
   resolution: "regexp-match-indices@npm:1.0.2"