Bump the dev-dependencies group with 3 updates (#6513)

Bumps the dev-dependencies group with 3 updates: [eslint](https://github.com/eslint/eslint), [i18next](https://github.com/i18next/i18next) and [vitepress](https://github.com/vuejs/vitepress).


Updates `eslint` from 9.6.0 to 9.7.0
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/main/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v9.6.0...v9.7.0)

Updates `i18next` from 23.11.5 to 23.12.1
- [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/v23.11.5...v23.12.1)

Updates `vitepress` from 1.3.0 to 1.3.1
- [Release notes](https://github.com/vuejs/vitepress/releases)
- [Changelog](https://github.com/vuejs/vitepress/blob/main/CHANGELOG.md)
- [Commits](https://github.com/vuejs/vitepress/compare/v1.3.0...v1.3.1)

---
updated-dependencies:
- dependency-name: eslint
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: i18next
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dev-dependencies
- dependency-name: vitepress
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/package.json

@@ -96,7 +96,7 @@
     "@types/sinon": "^17.0.3",
     "@types/supertest": "^6.0.2",
     "@types/underscore": "^1.11.15",
-    "eslint": "^9.6.0",
+    "eslint": "^9.7.0",
     "eslint-config-etherpad": "^4.0.4",
     "etherpad-cli-client": "^3.0.2",
     "mocha": "^10.6.0",