fix(deps): bump @strapi/strapi from 4.5.5 to 4.14.3 in /backend

Bumps [@strapi/strapi](https://github.com/strapi/strapi) from 4.5.5 to 4.14.3.
- [Release notes](https://github.com/strapi/strapi/releases)
- [Commits](strapi/strapi@v4.5.5...v4.14.3)

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

Signed-off-by: dependabot[bot] <[email protected]>