[Snyk] Upgrade: gatsby, gatsby-image, gatsby-plugin-google-analytics, gatsby-plugin-lodash, gatsby-plugin-manifest, gatsby-plugin-react-helmet, gatsby-plugin-sharp, gatsby-plugin-styled-components, gatsby-plugin-typescript, gatsby-remark-autolink-headers, gatsby-remark-copy-linked-files, gatsby-remark-images, gatsby-remark-katex, gatsby-remark-prismjs, gatsby-remark-responsive-iframe, gatsby-remark-smartypants, gatsby-source-filesystem, gatsby-transformer-remark, gatsby-transformer-sharp #16