Bump the dependencies group with 2 updates (#349)

Bumps the dependencies group with 2 updates: [convict](https://github.com/mozilla/node-convict) and [@defra/docusaurus-theme-govuk](https://github.com/DEFRA/docusaurus-theme-govuk).


Updates `convict` from 6.2.4 to 6.2.5
- [Changelog](https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mozilla/node-convict/commits)

Updates `@defra/docusaurus-theme-govuk` from 0.0.12-alpha to 0.0.13-alpha
- [Release notes](https://github.com/DEFRA/docusaurus-theme-govuk/releases)
- [Commits](DEFRA/docusaurus-theme-govuk@v0.0.12-alpha...v0.0.13-alpha)

---
updated-dependencies:
- dependency-name: convict
  dependency-version: 6.2.5
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: "@defra/docusaurus-theme-govuk"
  dependency-version: 0.0.13-alpha
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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

Author: dependabot[bot]

package-lock.json

@@ -109,7 +109,7 @@
     "blipp": "^4.0.2",
     "btoa": "^1.2.1",
     "chokidar": "3.6.0",
-    "convict": "^6.2.4",
+    "convict": "^6.2.5",
     "date-fns": "^4.1.0",
     "dotenv": "^17.2.3",
     "expr-eval-fork": "^3.0.0",
@@ -140,7 +140,7 @@
     "@babel/plugin-syntax-import-attributes": "^7.27.1",
     "@babel/preset-env": "^7.28.5",
     "@babel/preset-typescript": "^7.28.5",
-    "@defra/docusaurus-theme-govuk": "^0.0.12-alpha",
+    "@defra/docusaurus-theme-govuk": "^0.0.13-alpha",
     "@docusaurus/core": "^3.9.2",
     "@docusaurus/plugin-content-docs": "^3.9.2",
     "@easyops-cn/docusaurus-search-local": "^0.55.0",