Bump phenx/php-svg-lib from 0.5.0 to 0.5.1

Bumps [phenx/php-svg-lib](https://github.com/PhenX/php-svg-lib) from 0.5.0 to 0.5.1.
- [Release notes](https://github.com/PhenX/php-svg-lib/releases)
- [Commits](dompdf/php-svg-lib@0.5.0...0.5.1)

---
updated-dependencies:
- dependency-name: phenx/php-svg-lib
  dependency-type: indirect
...

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