Bump github.com/hashicorp/terraform-plugin-docs from 0.15.0 to 0.16.0

Bumps [github.com/hashicorp/terraform-plugin-docs](https://github.com/hashicorp/terraform-plugin-docs) from 0.15.0 to 0.16.0.
- [Release notes](https://github.com/hashicorp/terraform-plugin-docs/releases)
- [Changelog](https://github.com/hashicorp/terraform-plugin-docs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/terraform-plugin-docs/compare/v0.15.0...v0.16.0)

---
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] <support@github.com>

vendor/github.com/hashicorp/terraform-json/checks.go

@@ -92,7 +92,7 @@ type CheckDynamicAddress struct {
 	//
 	// InstanceKey will be empty if there was no foreach or count argument
 	// defined on the containing object.
-	InstanceKey string `json:"instance_key,omitempty"`
+	InstanceKey interface{} `json:"instance_key,omitempty"`
 }
 
 // CheckResultStatic is the container for a "checkable object".

vendor/github.com/hashicorp/terraform-plugin-docs/internal/provider/generate.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path"
 	"path/filepath"
 	"runtime"
 	"strings"
@@ -22,6 +23,7 @@ import (
 	"github.com/hashicorp/terraform-exec/tfexec"
 	tfjson "github.com/hashicorp/terraform-json"
 	"github.com/mitchellh/cli"
+	"golang.org/x/exp/slices"
 )
 
 var (
@@ -63,6 +65,16 @@ var (
 		providerFileTemplate("index.html.markdown"),
 		providerFileTemplate("index.html.md"),
 	}
+
+	managedWebsiteSubDirectories = []string{
+		"data-sources",
+		"guides",
+		"resources",
+	}
+
+	managedWebsiteFiles = []string{
+		"index.md",
+	}
 )
 
 type generator struct {
@@ -416,11 +428,34 @@ func (g *generator) renderMissingDocs(providerName string, providerSchema *tfjso
 
 func (g *generator) renderStaticWebsite(providerName string, providerSchema *tfjson.ProviderSchema) error {
 	g.infof("cleaning rendered website dir")
-	err := os.RemoveAll(g.ProviderDocsDir())
+	dirEntry, err := os.ReadDir(g.ProviderDocsDir())
 	if err != nil {
 		return err
 	}
 
+	for _, file := range dirEntry {
+
+		// Remove subdirectories managed by tfplugindocs
+		if file.IsDir() && slices.Contains(managedWebsiteSubDirectories, file.Name()) {
+			g.infof("removing directory: %q", file.Name())
+			err = os.RemoveAll(path.Join(g.ProviderDocsDir(), file.Name()))
+			if err != nil {
+				return err
+			}
+			continue
+		}
+
+		// Remove files managed by tfplugindocs
+		if !file.IsDir() && slices.Contains(managedWebsiteFiles, file.Name()) {
+			g.infof("removing file: %q", file.Name())
+			err = os.RemoveAll(path.Join(g.ProviderDocsDir(), file.Name()))
+			if err != nil {
+				return err
+			}
+			continue
+		}
+	}
+
 	shortName := providerShortName(providerName)
 
 	g.infof("rendering templated website to static markdown")

vendor/github.com/hashicorp/terraform-plugin-docs/internal/provider/validate.go

@@ -98,6 +98,7 @@ func validateStaticDocs(ui cli.Ui, dir string) error {
 			"data-sources",
 			"guides",
 			"resources",
+			"cdktf",
 		),
 		checkBlockedExtensions(
 			".html.md.tmpl",