Bump @reduxjs/toolkit from 2.5.1 to 2.6.0

Bumps [@reduxjs/toolkit](https://github.com/reduxjs/redux-toolkit) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/reduxjs/redux-toolkit/releases)
- [Commits](https://github.com/reduxjs/redux-toolkit/compare/v2.5.1...v2.6.0)

---
updated-dependencies:
- dependency-name: "@reduxjs/toolkit"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -31,7 +31,7 @@
     "@fortawesome/free-solid-svg-icons": "^6.7.2",
     "@fortawesome/react-fontawesome": "^0.2.2",
     "@json2csv/plainjs": "^7.0.6",
-    "@reduxjs/toolkit": "^2.5.1",
+    "@reduxjs/toolkit": "^2.6.0",
     "@shlinkio/data-manipulation": "^1.0.3",
     "@shlinkio/shlink-frontend-kit": "^0.7.2",
     "@shlinkio/shlink-js-sdk": "^2.0.0",