Bump dompdf/dompdf from 3.1.2 to 3.1.4

Bumps [dompdf/dompdf](https://github.com/dompdf/dompdf) from 3.1.2 to 3.1.4.
- [Release notes](https://github.com/dompdf/dompdf/releases)
- [Commits](dompdf/dompdf@v3.1.2...v3.1.4)

---
updated-dependencies:
- dependency-name: dompdf/dompdf
  dependency-version: 3.1.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]