chore(deps): update gatsby monorepo

This PR contains the following updates:

Package	Type	Update	Change
babel-preset-gatsby	devDependencies	patch	`0.5.5` -> `0.5.8`
gatsby (changelog)	dependencies	patch	`2.24.47` -> `2.24.52`
gatsby-plugin-manifest	dependencies	patch	`2.4.23` -> `2.4.26`
gatsby-plugin-offline	dependencies	patch	`3.2.23` -> `3.2.26`
gatsby-plugin-sharp	dependencies	patch	`2.6.27` -> `2.6.30`
gatsby-plugin-sitemap	dependencies	patch	`2.4.11` -> `2.4.12`
gatsby-source-filesystem	dependencies	patch	`2.3.24` -> `2.3.27`

Release Notes

gatsbyjs/gatsby

### [`v0.5.8`](https://togithub.com/gatsbyjs/gatsby/compare/093614ffaf94e827f278af4a3d2bce93905bf719...ac72bfb7d1ff2c06ef6652f12c1e861fd7cc21f3) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/093614ffaf94e827f278af4a3d2bce93905bf719...ac72bfb7d1ff2c06ef6652f12c1e861fd7cc21f3) ### [`v0.5.7`](https://togithub.com/gatsbyjs/gatsby/compare/56990bdd49c01e4f4a0c659df542e35abea2954e...093614ffaf94e827f278af4a3d2bce93905bf719) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/56990bdd49c01e4f4a0c659df542e35abea2954e...093614ffaf94e827f278af4a3d2bce93905bf719) ### [`v0.5.6`](https://togithub.com/gatsbyjs/gatsby/compare/2fabba835f61232e38d76a99b7d15c53b66e5214...56990bdd49c01e4f4a0c659df542e35abea2954e) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/2fabba835f61232e38d76a99b7d15c53b66e5214...56990bdd49c01e4f4a0c659df542e35abea2954e)

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multei / web

chore(deps): update gatsby monorepo #302

Release Notes

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