fix(docs): fix syntax errors in the lambda layer terraform example

docs/index.md

@@ -101,36 +101,34 @@ You can include Lambda Powertools Lambda Layer using [AWS Lambda Console](https:
 
 === "Terraform"
 
-    ```terraform hl_lines="9 38"
+    ```terraform hl_lines="9 35"
     terraform {
-      required_version = "~> 1.0.5"
+      required_version = "~> 1.1.7"
       required_providers {
-        aws = "~> 3.50.0"
+        aws = "~> 4.4.0"
       }
     }
 
     provider "aws" {
-      region  = "{region}"
+      region = "{region}"
     }
 
     resource "aws_iam_role" "iam_for_lambda" {
       name = "iam_for_lambda"
 
-      assume_role_policy = <<EOF
-        {
-          "Version": "2012-10-17",
-          "Statement": [
-            {
-              "Action": "sts:AssumeRole",
-              "Principal": {
-                "Service": "lambda.amazonaws.com"
-              },
-              "Effect": "Allow"
-            }
-          ]
-        }
-        EOF
-	}
+      assume_role_policy = jsonencode({
+        Version = "2012-10-17",
+        Statement = [
+          {
+            Action = "sts:AssumeRole",
+            Principal = {
+              Service = "lambda.amazonaws.com"
+            },
+            Effect = "Allow"
+          }
+        ]
+      })
+    }
 
     resource "aws_lambda_function" "test_lambda" {
       filename      = "lambda_function_payload.zip"
@@ -142,8 +140,6 @@ You can include Lambda Powertools Lambda Layer using [AWS Lambda Console](https:
 
       source_code_hash = filebase64sha256("lambda_function_payload.zip")
     }
-
-
     ```
 
 === "Amplify"