Bump @types/qs from 6.14.0 to 6.15.0 in /admin

Bumps [@types/qs](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/qs) from 6.14.0 to 6.15.0.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/qs)

---
updated-dependencies:
- dependency-name: "@types/qs"
  dependency-version: 6.15.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

admin/package.json

@@ -52,7 +52,7 @@
     "@types/material-ui": "0.21.18",
     "@types/node": "^25.3.2",
     "@types/prop-types": "^15.7.15",
-    "@types/qs": "^6.14.0",
+    "@types/qs": "^6.15.0",
     "@types/react": "^19.2.14",
     "@types/react-dom": "^19.2.3",
     "@types/react-is": "^19",

admin/yarn.lock

@@ -1672,10 +1672,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/qs@npm:^6.14.0":
-  version: 6.14.0
-  resolution: "@types/qs@npm:6.14.0"
-  checksum: 10c0/5b3036df6e507483869cdb3858201b2e0b64b4793dc4974f188caa5b5732f2333ab9db45c08157975054d3b070788b35088b4bc60257ae263885016ee2131310
+"@types/qs@npm:^6.15.0":
+  version: 6.15.0
+  resolution: "@types/qs@npm:6.15.0"
+  checksum: 10c0/1b104cac50e655fc41d7fc1de2c2aba2908c4cf833a555b6808fb4c96752662b439238f2392a15d2590a7a6ca75dbd40e42d9378ac2be0d548ee484954363688
   languageName: node
   linkType: hard
 
@@ -1907,7 +1907,7 @@ __metadata:
     "@types/material-ui": "npm:0.21.18"
     "@types/node": "npm:^25.3.2"
     "@types/prop-types": "npm:^15.7.15"
-    "@types/qs": "npm:^6.14.0"
+    "@types/qs": "npm:^6.15.0"
     "@types/react": "npm:^19.2.14"
     "@types/react-dom": "npm:^19.2.3"
     "@types/react-is": "npm:^19"