[CHORE] bump version to v4.0.0 (#52)

* [SVLS-7571] update aws provider version and fix deprecation warning

* [CHORE] bump version to v4.0.0

Author: ava-silver

README.md

@@ -16,7 +16,7 @@ This Terraform module wraps the [aws_lambda_function](https://registry.terraform
 ```
 module "lambda-datadog" {
   source  = "DataDog/lambda-datadog/aws"
-  version = "3.2.1"
+  version = "4.0.0"
 
   filename      = "example.zip"
   function_name = "example-function"
@@ -42,7 +42,7 @@ module "lambda-datadog" {
 ```
 module "lambda-datadog" {
   source  = "DataDog/lambda-datadog/aws"
-  version = "3.2.1"
+  version = "4.0.0"
 
   filename      = "example.zip"
   function_name = "example-function"
@@ -68,7 +68,7 @@ module "lambda-datadog" {
 ```
 module "lambda-datadog" {
   source  = "DataDog/lambda-datadog/aws"
-  version = "3.2.1"
+  version = "4.0.0"
 
   filename      = "example.zip"
   function_name = "example-function"
@@ -94,7 +94,7 @@ module "lambda-datadog" {
 ```
 module "lambda-datadog" {
   source  = "DataDog/lambda-datadog/aws"
-  version = "3.2.1"
+  version = "4.0.0"
 
   filename      = "example.jar"
   function_name = "example-function"
@@ -120,7 +120,7 @@ module "lambda-datadog" {
 ```
 module "lambda-datadog" {
   source  = "DataDog/lambda-datadog/aws"
-  version = "3.2.1"
+  version = "4.0.0"
 
   filename      = "example.zip"
   function_name = "example-function"
@@ -182,7 +182,7 @@ resource "aws_lambda_function" "example_lambda_function" {
 ```
 module "lambda-datadog" {
   source  = "DataDog/lambda-datadog/aws"
-  version = "3.2.1"
+  version = "4.0.0"
 
   function_name = "example-function"  
   ...

main.tf

@@ -90,7 +90,7 @@ locals {
   }
 
   tags = {
-    dd_sls_terraform_module = "3.2.1"
+    dd_sls_terraform_module = "4.0.0"
   }
 }