Bump github.com/hashicorp/terraform-plugin-docs from 0.7.0 to 0.13.0

Bumps [github.com/hashicorp/terraform-plugin-docs](https://github.com/hashicorp/terraform-plugin-docs) from 0.7.0 to 0.13.0.
- [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/v0.7.0...v0.13.0)

---
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/Masterminds/goutils/randomstringutils.go

@@ -20,7 +20,6 @@ import (
 	"fmt"
 	"math"
 	"math/rand"
-	"regexp"
 	"time"
 	"unicode"
 )
@@ -75,12 +74,10 @@ func RandomNumeric(count int) (string, error) {
 
 /*
 RandomAlphabetic creates a random string whose length is the number of characters specified.
-Characters will be chosen from the set of alpha-numeric characters as indicated by the arguments.
+Characters will be chosen from the set of alphabetic characters.
 
 Parameters:
 	count - the length of random string to create
-	letters - if true, generated string may include alphabetic characters
-	numbers - if true, generated string may include numeric characters
 
 Returns:
 	string - the random string
@@ -102,24 +99,7 @@ Returns:
 	error - an error stemming from an invalid parameter within underlying function, RandomSeed(...)
 */
 func RandomAlphaNumeric(count int) (string, error) {
-	RandomString, err := Random(count, 0, 0, true, true)
-	if err != nil {
-		return "", fmt.Errorf("Error: %s", err)
-	}
-	match, err := regexp.MatchString("([0-9]+)", RandomString)
-	if err != nil {
-		panic(err)
-	}
-
-	if !match {
-		//Get the position between 0 and the length of the string-1  to insert a random number
-		position := rand.Intn(count)
-		//Insert a random number between [0-9] in the position
-		RandomString = RandomString[:position] + string('0'+rand.Intn(10)) + RandomString[position+1:]
-		return RandomString, err
-	}
-	return RandomString, err
-
+	return Random(count, 0, 0, true, true)
 }
 
 /*