Bump mermaid from 10.3.1 to 10.4.0

Bumps [mermaid](https://github.com/mermaid-js/mermaid) from 10.3.1 to 10.4.0.
- [Release notes](https://github.com/mermaid-js/mermaid/releases)
- [Changelog](https://github.com/mermaid-js/mermaid/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/mermaid-js/mermaid/compare/v10.3.1...v10.4.0)

---
updated-dependencies:
- dependency-name: mermaid
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

sites/shared/package.json

@@ -38,7 +38,7 @@
     "lodash.unset": "4.5.2",
     "lodash.get": "4.4.2",
     "mdast-util-toc": "7.0.0",
-    "mermaid": "10.3.1",
+    "mermaid": "10.4.0",
     "ora": "7.0.1",
     "pdfkit": "0.13.0",
     "postcss-for": "2.1.1",

yarn.lock

@@ -9525,10 +9525,10 @@ merge2@^1.3.0, merge2@^1.4.1:
   resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.4.1.tgz#4368892f885e907455a6fd7dc55c0c9d404990ae"
   integrity sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==
 
-mermaid@10.3.1:
-  version "10.3.1"
-  resolved "https://registry.yarnpkg.com/mermaid/-/mermaid-10.3.1.tgz#2f3c7e9f6bd7a8da2bef71cce2a542c8eba2a62e"
-  integrity sha512-hkenh7WkuRWPcob3oJtrN3W+yzrrIYuWF1OIfk/d0xGE8UWlvDhfexaHmDwwe8DKQgqMLI8DWEPwGprxkumjuw==
+mermaid@10.4.0:
+  version "10.4.0"
+  resolved "https://registry.yarnpkg.com/mermaid/-/mermaid-10.4.0.tgz#f89bf0ada161cbbe4dba2776e805119f7245a102"
+  integrity sha512-4QCQLp79lvz7UZxow5HUX7uWTPJOaQBVExduo91tliXC7v78i6kssZOPHxLL+Xs30KU72cpPn3g3imw/xm/gaw==
   dependencies:
     "@braintree/sanitize-url" "^6.0.1"
     "@types/d3-scale" "^4.0.3"