build(deps): bump github.com/yuin/goldmark from 1.7.3 to 1.7.4 in /demo

Bumps [github.com/yuin/goldmark](https://github.com/yuin/goldmark) from 1.7.3 to 1.7.4.
- [Release notes](https://github.com/yuin/goldmark/releases)
- [Commits](yuin/goldmark@v1.7.3...v1.7.4)

---
updated-dependencies:
- dependency-name: github.com/yuin/goldmark
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

demo/go.mod

@@ -5,6 +5,6 @@ go 1.20
 replace go.abhg.dev/goldmark/mermaid => ../
 
 require (
-	github.com/yuin/goldmark v1.7.3
+	github.com/yuin/goldmark v1.7.4
 	go.abhg.dev/goldmark/mermaid v0.3.0
 )

demo/go.sum

@@ -9,7 +9,7 @@ github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8Hm
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
-github.com/yuin/goldmark v1.7.3 h1:fdk0a/y60GsS4NbEd13GSIP+d8OjtTkmluY32Dy1Z/A=
-github.com/yuin/goldmark v1.7.3/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
+github.com/yuin/goldmark v1.7.4 h1:BDXOHExt+A7gwPCJgPIIq7ENvceR7we7rOS9TNoLZeg=
+github.com/yuin/goldmark v1.7.4/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
 golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=