Update @gridsome/source-filesystem requirement from ^0.3.0 to ^0.5.0 Updates the requirements on [@gridsome/source-filesystem](https://github.com/gridsome/gridsome) to permit the latest version. - [Release notes](https://github.com/gridsome/gridsome/releases) - [Commits](https://github.com/gridsome/gridsome/compare/@gridsome/source-filesystem@0.3.0...@gridsome/source-filesystem@0.5.0)