Bump enshrined/svg-sanitize from 0.10.0 to 0.12.0 in /libs/composer

Bumps [enshrined/svg-sanitize](https://github.com/darylldoyle/svg-sanitizer) from 0.10.0 to 0.12.0.
- [Release notes](https://github.com/darylldoyle/svg-sanitizer/releases)
- [Commits](https://github.com/darylldoyle/svg-sanitizer/compare/0.10.0...0.12.0

)

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