build(deps): bump com.amazonaws:aws-java-sdk-bom (#984)

Bumps [com.amazonaws:aws-java-sdk-bom](https://github.com/aws/aws-sdk-java) from 1.12.411 to 1.12.540.

Author: dependabot[bot]

sdk1/pom.xml

@@ -149,7 +149,7 @@
             <dependency>
                 <groupId>com.amazonaws</groupId>
                 <artifactId>aws-java-sdk-bom</artifactId>
-                <version>1.12.411</version>
+                <version>1.12.540</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>