build(deps): bump com.amazonaws:aws-java-sdk-sts

Bumps [com.amazonaws:aws-java-sdk-sts](https://github.com/aws/aws-sdk-java) from 1.12.706 to 1.12.709.
- [Changelog](https://github.com/aws/aws-sdk-java/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java@1.12.706...1.12.709)

---
updated-dependencies:
- dependency-name: com.amazonaws:aws-java-sdk-sts
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -148,7 +148,7 @@
       <dependency>
         <groupId>com.amazonaws</groupId>
         <artifactId>aws-java-sdk-sts</artifactId>
-        <version>1.12.706</version>
+        <version>1.12.709</version>
         <optional>true</optional>
       </dependency>
       <dependency>