Bump braces, gatsby, @rocketseat/gatsby-theme-docs, gatsby-plugin-canonical-urls, gatsby-plugin-manifest, gatsby-plugin-offline, gatsby-plugin-react-helmet, gatsby-plugin-remove-trailing-slashes, gatsby-plugin-sass, gatsby-plugin-sitemap, gatsby-source-filesystem, gatsby-transformer-remark and gatsby-transformer-yaml

Bump braces, gatsby, @rocketseat/gatsby-theme-docs, gatsby-plugin-canonical-urls, gatsby-plugin-manifest, gatsby-plugin-offline, gatsby-plugin-react-helmet, gatsby-plugin-remove-trailing-slashes, gatsby-plugin-sass, gatsby-plugin-sitemap, gatsby-source-filesystem, gatsby-transformer-remark and gatsby-transformer-yaml #1476