build(deps): bump gatsby-remark-images from 3.3.29 to 3.6.0 in /docs (#1531)

Bumps [gatsby-remark-images](https://github.com/gatsbyjs/gatsby/tree/HEAD/packages/gatsby-remark-images) from 3.3.29 to 3.6.0.
- [Release notes](https://github.com/gatsbyjs/gatsby/releases)
- [Changelog](https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-remark-images/CHANGELOG.md)
- [Commits](https://github.com/gatsbyjs/gatsby/commits/[email protected]/packages/gatsby-remark-images)

Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: Xiang Dai <[email protected]>
Co-authored-by: Xiang Dai <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/package-lock.json

@@ -31,7 +31,7 @@
     "gatsby-remark-copy-linked-files": "^2.3.12",
     "gatsby-remark-embedder": "^4.0.0",
     "gatsby-remark-external-links": "0.0.4",
-    "gatsby-remark-images": "^3.3.29",
+    "gatsby-remark-images": "^3.6.0",
     "gatsby-remark-mermaid": "^2.1.0",
     "gatsby-remark-responsive-iframe": "^2.6.0",
     "gatsby-source-filesystem": "^2.3.30",