fix(deps): update gatsby monorepo

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
gatsby-plugin-sharp	2.7.1 -> 2.11.2
gatsby-transformer-sharp	2.5.21 -> 2.9.0

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Release Notes

gatsbyjs/gatsby

### [`v2.11.2`](https://togithub.com/gatsbyjs/gatsby/compare/gatsby@2.11.1...gatsby@2.11.2) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/5a0489d7d56353af92c89882b7f5b0e3242487bd...12a78aface75f7970c36a3d9c24a5d8dc5dd30c5) ### [`v2.11.1`](https://togithub.com/gatsbyjs/gatsby/compare/03d497f15bc968d88bb0c85ce427da797b8fc61d...5a0489d7d56353af92c89882b7f5b0e3242487bd) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/03d497f15bc968d88bb0c85ce427da797b8fc61d...5a0489d7d56353af92c89882b7f5b0e3242487bd) ### [`v2.11.0`](https://togithub.com/gatsbyjs/gatsby/compare/6d11da940468a90265fdfbde786eebd0d9df8e37...03d497f15bc968d88bb0c85ce427da797b8fc61d) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/6d11da940468a90265fdfbde786eebd0d9df8e37...03d497f15bc968d88bb0c85ce427da797b8fc61d) ### [`v2.10.1`](https://togithub.com/gatsbyjs/gatsby/compare/52637b6a88f304a79bd3999615e224113b255349...6d11da940468a90265fdfbde786eebd0d9df8e37) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/52637b6a88f304a79bd3999615e224113b255349...6d11da940468a90265fdfbde786eebd0d9df8e37) ### [`v2.10.0`](https://togithub.com/gatsbyjs/gatsby/compare/52637b6a88f304a79bd3999615e224113b255349...03d497f15bc968d88bb0c85ce427da797b8fc61d) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/aa8934e949ec45aae135d3a08499d9b24a2a1643...52637b6a88f304a79bd3999615e224113b255349) ### [`v2.9.1`](https://togithub.com/gatsbyjs/gatsby/compare/03d497f15bc968d88bb0c85ce427da797b8fc61d...12a78aface75f7970c36a3d9c24a5d8dc5dd30c5) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/3d607f1ae0cdde12fb8de53e6d0784f83875df25...aa8934e949ec45aae135d3a08499d9b24a2a1643) ### [`v2.9.0`](https://togithub.com/gatsbyjs/gatsby/compare/135e554aa9e8f10a282983eca65c29ffae738339...3d607f1ae0cdde12fb8de53e6d0784f83875df25) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/135e554aa9e8f10a282983eca65c29ffae738339...3d607f1ae0cdde12fb8de53e6d0784f83875df25) ### [`v2.8.0`](https://togithub.com/gatsbyjs/gatsby/compare/52637b6a88f304a79bd3999615e224113b255349...03d497f15bc968d88bb0c85ce427da797b8fc61d) [Compare Source](https://togithub.com/gatsbyjs/gatsby/compare/077b67fa366eb5c5e0171e87eec8c8810d44c0d5...135e554aa9e8f10a282983eca65c29ffae738339)

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