Added CRaC support for serialization utility

Author: Attyuttam

powertools-serialization/src/main/java/software/amazon/lambda/powertools/utilities/PrimingException.java

@@ -3,13 +3,8 @@
 /**
  * Exception thrown when priming operations fail during CRaC checkpoint preparation.
  */
-public class PrimingException extends Exception {
-
-    public PrimingException(String message, Throwable cause) {
-        super(message, cause);
-    }
-
-    public PrimingException(String message) {
-        super(message);
+public class PrimingException extends RuntimeException {
+    public PrimingException(String message, Exception e) {
+        super(message,e);
     }
 }