Update aws requirement from ~> 4.45.0 to ~> 4.48.0 in /aws

Updates the requirements on aws to permit the latest version.

---
updated-dependencies:
- dependency-name: aws
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

aws/versions.tf

@@ -3,7 +3,7 @@ terraform {
 
   required_providers {
     aws = {
-      version = "~> 4.45.0"
+      version = "~> 4.48.0"
     }
     random = {
       version = "~> 3.4.3"