docs: Correct reference module implementation names to be unique in v20 upgrade guide (#3174)

Author: bryantbiggs

.pre-commit-config.yaml

@@ -24,7 +24,7 @@ repos:
           - '--args=--only=terraform_unused_required_providers'
       - id: terraform_validate
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v5.0.0
     hooks:
       - id: check-merge-conflict
       - id: end-of-file-fixer

docs/UPGRADE-20.0.md

@@ -170,7 +170,7 @@ To give users advanced notice and provide some future direction for this module,
 -   ]
 }
 
-+ module "eks" {
++ module "eks_aws_auth" {
 +   source  = "terraform-aws-modules/eks/aws//modules/aws-auth"
 +   version = "~> 20.0"
 
@@ -197,7 +197,7 @@ To give users advanced notice and provide some future direction for this module,
 ### Karpenter Diff of Before (v19.21) vs After (v20.0)
 
 ```diff
- module "eks" {
+ module "eks_karpenter" {
    source  = "terraform-aws-modules/eks/aws//modules/karpenter"
 -  version = "~> 19.21"
 +  version = "~> 20.0"