Bump software.amazon.awssdk:bom from 2.26.1 to 2.26.6

Bumps software.amazon.awssdk:bom from 2.26.1 to 2.26.6.

---
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>

pom.xml

@@ -172,7 +172,7 @@
     <audienceannotations.version>0.15.0</audienceannotations.version>
     <clp-ffi.version>0.4.4</clp-ffi.version>
     <stax2-api.version>4.2.2</stax2-api.version>
-    <aws.sdk.version>2.26.1</aws.sdk.version>
+    <aws.sdk.version>2.26.6</aws.sdk.version>
     <joda-time.version>2.12.7</joda-time.version>
     <janino.version>3.1.12</janino.version>
     <testng.version>7.10.2</testng.version>