bump version references for other samples' pom.xml 0.4

Author: yyolk

samples/jersey/pet-store/pom.xml

@@ -34,7 +34,7 @@
         <dependency>
             <groupId>com.amazonaws.serverless</groupId>
             <artifactId>aws-serverless-java-container-jersey</artifactId>
-            <version>0.1</version>
+            <version>0.4</version>
         </dependency>
 
         <dependency>
@@ -70,4 +70,4 @@
             </plugin>
         </plugins>
     </build>
-</project>
+</project>

samples/spring/pet-store/pom.xml

@@ -34,7 +34,7 @@
         <dependency>
             <groupId>com.amazonaws.serverless</groupId>
             <artifactId>aws-serverless-java-container-spring</artifactId>
-            <version>0.1</version>
+            <version>0.4</version>
         </dependency>
 
         <dependency>
@@ -87,4 +87,4 @@
             </plugin>
         </plugins>
     </build>
-</project>
+</project>