chore(deps): bump software.amazon.awssdk:bom from 2.18.1 to 2.18.8

Bumps [software.amazon.awssdk:bom](https://github.com/aws/aws-sdk-java-v2) from 2.18.1 to 2.18.8.
- [Release notes](https://github.com/aws/aws-sdk-java-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-java-v2/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java-v2@2.18.1...2.18.8)

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

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

pom.xml

@@ -43,7 +43,7 @@
             <dependency>
                 <groupId>software.amazon.awssdk</groupId>
                 <artifactId>bom</artifactId>
-                <version>2.18.1</version>
+                <version>2.18.8</version>
                 <optional>true</optional>
                 <type>pom</type>
                 <scope>import</scope>