Bump php-ffmpeg/php-ffmpeg from 1.3.0 to 1.3.1 (#2911)

Bumps [php-ffmpeg/php-ffmpeg](https://github.com/PHP-FFMpeg/PHP-FFMpeg) from 1.3.0 to 1.3.1.
- [Release notes](https://github.com/PHP-FFMpeg/PHP-FFMpeg/releases)
- [Changelog](https://github.com/PHP-FFMpeg/PHP-FFMpeg/blob/master/ORIGINAL_ALCHEMY_CHANGELOG.md)
- [Commits](PHP-FFMpeg/PHP-FFMpeg@v1.3.0...v1.3.1)

---
updated-dependencies:
- dependency-name: php-ffmpeg/php-ffmpeg
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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