Update gatsby monorepo

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
babel-preset-gatsby	devDependencies	patch	0.5.10 -> 0.5.14
gatsby (changelog)	dependencies	patch	2.24.62 -> 2.24.78
gatsby-cli	dependencies	patch	2.12.99 -> 2.12.108
gatsby-plugin-feed	dependencies	patch	2.5.12 -> 2.5.14
gatsby-plugin-manifest	dependencies	patch	2.4.30 -> 2.4.34
gatsby-plugin-offline	dependencies	patch	3.2.28 -> 3.2.32
gatsby-plugin-preact	dependencies	patch	4.0.12 -> 4.0.15
gatsby-plugin-react-helmet	dependencies	patch	3.3.11 -> 3.3.14
gatsby-plugin-sass	dependencies	patch	2.3.13 -> 2.3.16
gatsby-plugin-sharp	dependencies	patch	2.6.36 -> 2.6.42
gatsby-plugin-sitemap	dependencies	patch	2.4.13 -> 2.4.17
gatsby-remark-copy-linked-files	dependencies	patch	2.3.15 -> 2.3.19
gatsby-remark-images	dependencies	patch	3.3.30 -> 3.3.34
gatsby-remark-responsive-iframe	dependencies	patch	2.4.14 -> 2.4.17
gatsby-remark-smartypants	dependencies	patch	2.3.11 -> 2.3.13
gatsby-source-filesystem	dependencies	patch	2.3.30 -> 2.3.34
gatsby-transformer-remark	dependencies	patch	2.8.35 -> 2.8.40
gatsby-transformer-sharp	dependencies	patch	2.5.15 -> 2.5.17

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Release Notes

gatsbyjs/gatsby

v0.5.14

Compare Source

v0.5.13

Compare Source

v0.5.12

Compare Source

v0.5.11

Compare Source

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