Update aws-java-sdk monorepo to v1.12.668

Author: renovate[bot]

pom.xml

@@ -174,19 +174,19 @@ software.
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-core</artifactId>
-      <version>1.12.576</version>
+      <version>1.12.668</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-s3</artifactId>
-      <version>1.12.576</version>
+      <version>1.12.668</version>
       <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>com.amazonaws</groupId>
       <artifactId>aws-java-sdk-dynamodb</artifactId>
-      <version>1.12.576</version>
+      <version>1.12.668</version>
     </dependency>
     <dependency>
       <groupId>com.jcabi</groupId>