Bump awsSdk2Version in /cross-account-publish/certificate-based-stack

Bumps `awsSdk2Version` from 2.31.70 to 2.31.72.

Updates `software.amazon.awssdk:iot` from 2.31.70 to 2.31.72

Updates `software.amazon.awssdk:apache-client` from 2.31.70 to 2.31.72

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:iot
  dependency-version: 2.31.72
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: software.amazon.awssdk:apache-client
  dependency-version: 2.31.72
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

cross-account-publish/certificate-based-stack/build.gradle.kts

@@ -55,7 +55,7 @@ val awsLambdaJavaLog4j2Version = "1.6.0"
 val log4jVersion = "2.18.0"
 val jacksonVersion = "2.12.1"
 val vavrVersion = "0.10.3"
-val awsSdk2Version = "2.31.70"
+val awsSdk2Version = "2.31.72"
 val gwtServletVersion = "2.9.0"
 val junitVersion = "4.13.2"
 val slf4jSimpleVersion = "1.7.30"