JCR-5110: update aws java sdk version to 1.12.773

Author: reschke

jackrabbit-aws-ext/pom.xml

@@ -49,7 +49,7 @@
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-java-sdk-s3</artifactId>
-            <version>1.12.761</version>
+            <version>1.12.773</version>
         </dependency>
         <dependency>
             <groupId>org.apache.jackrabbit</groupId>