chore(deps): update all minor dependencies (#501)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

bootstrap/central_account_iam/provider.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = "1.14.7"
+  required_version = "1.15.6"
   required_providers {
     aws = {
       source  = "hashicorp/aws"

bootstrap/satellite_account_iam/provider.tf

@@ -1,5 +1,5 @@
 terraform {
-  required_version = "1.14.7"
+  required_version = "1.15.6"
   required_providers {
     aws = {
       source  = "hashicorp/aws"