Update aws-java-sdk monorepo to v1.12.668

Author: renovate[bot]

pom.xml

@@ -84,12 +84,12 @@ OF THE POSSIBILITY OF SUCH DAMAGE.
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-core</artifactId>
-      <version>1.12.586</version>
+      <version>1.12.668</version>
     </dependency>
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-dynamodb</artifactId>
-      <version>1.12.586</version>
+      <version>1.12.668</version>
     </dependency>
     <dependency>
       <groupId>com.google.guava</groupId>