build(deps): bump gatsby-remark-mermaid from 2.0.0 to 2.1.0 in /docs (#1369)

Bumps [gatsby-remark-mermaid](https://github.com/remcohaszing/gatsby-remark-mermaid) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/remcohaszing/gatsby-remark-mermaid/releases)
- [Commits](remcohaszing/gatsby-remark-mermaid@v2.0.0...v2.1.0)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/package-lock.json

@@ -32,7 +32,7 @@
     "gatsby-remark-embedder": "^3.0.0",
     "gatsby-remark-external-links": "0.0.4",
     "gatsby-remark-images": "^3.3.28",
-    "gatsby-remark-mermaid": "^2.0.0",
+    "gatsby-remark-mermaid": "^2.1.0",
     "gatsby-remark-responsive-iframe": "^2.4.12",
     "gatsby-source-filesystem": "^2.3.24",
     "gatsby-transformer-remark": "^2.8.28",