GPC-NONE: Bump software.amazon.awssdk:bom from 2.21.1 to 2.21.2 in /lib

Bumps software.amazon.awssdk:bom from 2.21.1 to 2.21.2.

---
updated-dependencies:
- dependency-name: software.amazon.awssdk:bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

dependencies.gradle

@@ -5,7 +5,7 @@ ext {
             approvalTests      : "22.1.0",
             aspectjrt          : "1.9.20.1",
             assertJ            : "3.24.2",
-            awsSdk             : "2.21.1",
+            awsSdk             : "2.21.2",
             awsLambdaJavaCore  : "1.2.3",
             awsLambdaJavaEvents: "3.11.3",
             jackson            : "2.15.3",