build(deps): bump github.com/hashicorp/terraform-plugin-docs

Bumps [github.com/hashicorp/terraform-plugin-docs](https://github.com/hashicorp/terraform-plugin-docs) from 0.18.0 to 0.19.4.
- [Release notes](https://github.com/hashicorp/terraform-plugin-docs/releases)
- [Changelog](https://github.com/hashicorp/terraform-plugin-docs/blob/main/CHANGELOG.md)
- [Commits](hashicorp/terraform-plugin-docs@v0.18.0...v0.19.4)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/terraform-plugin-docs
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

go.mod

@@ -7,7 +7,7 @@ toolchain go1.22.0
 require (
 	github.com/eapache/go-resiliency v1.6.0
 	github.com/hashicorp/go-cty v1.4.1-0.20200414143053-d3edf31b6320
-	github.com/hashicorp/terraform-plugin-docs v0.18.0
+	github.com/hashicorp/terraform-plugin-docs v0.19.4
 	github.com/hashicorp/terraform-plugin-go v0.23.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
 	github.com/hashicorp/terraform-plugin-mux v0.16.0
@@ -16,6 +16,7 @@ require (
 )
 
 require (
+	github.com/BurntSushi/toml v1.2.1 // indirect
 	github.com/Kunde21/markdownfmt/v3 v3.1.0 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver/v3 v3.2.0 // indirect
@@ -25,6 +26,7 @@ require (
 	github.com/apparentlymart/go-textseg/v15 v15.0.0 // indirect
 	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/bgentry/speakeasy v0.1.0 // indirect
+	github.com/bmatcuk/doublestar/v4 v4.6.1 // indirect
 	github.com/cloudflare/circl v1.3.7 // indirect
 	github.com/fatih/color v1.17.0 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
@@ -39,7 +41,7 @@ require (
 	github.com/hashicorp/go-plugin v1.6.1 // indirect
 	github.com/hashicorp/go-uuid v1.0.3 // indirect
 	github.com/hashicorp/go-version v1.7.0 // indirect
-	github.com/hashicorp/hc-install v0.6.4 // indirect
+	github.com/hashicorp/hc-install v0.7.0 // indirect
 	github.com/hashicorp/hcl/v2 v2.20.1 // indirect
 	github.com/hashicorp/logutils v1.0.0 // indirect
 	github.com/hashicorp/terraform-exec v0.21.0 // indirect
@@ -59,15 +61,15 @@ require (
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/oklog/run v1.1.0 // indirect
 	github.com/posener/complete v1.2.3 // indirect
-	github.com/russross/blackfriday v1.6.0 // indirect
 	github.com/shopspring/decimal v1.3.1 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
 	github.com/vmihailenco/msgpack v4.0.4+incompatible // indirect
 	github.com/vmihailenco/msgpack/v5 v5.4.1 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
-	github.com/yuin/goldmark v1.6.0 // indirect
+	github.com/yuin/goldmark v1.7.1 // indirect
 	github.com/yuin/goldmark-meta v1.1.0 // indirect
 	github.com/zclconf/go-cty v1.14.4 // indirect
+	go.abhg.dev/goldmark/frontmatter v0.2.0 // indirect
 	golang.org/x/crypto v0.23.0 // indirect
 	golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df // indirect
 	golang.org/x/mod v0.17.0 // indirect
@@ -81,4 +83,5 @@ require (
 	google.golang.org/grpc v1.64.0 // indirect
 	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/yaml.v2 v2.3.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )