chore: update version for release 5.3.0

Author: mohnoor94

code/README.md

@@ -5,7 +5,7 @@
 <dependency>
     <groupId>com.expediagroup</groupId>
     <artifactId>rapid-sdk</artifactId>
-    <version>5.2.0</version>
+    <version>5.3.0</version>
 </dependency>
 ```
 

examples/pom.xml

@@ -11,7 +11,7 @@
         <java.version>1.8</java.version>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <rapid-java-sdk.sdk.version>5.2.0</rapid-java-sdk.sdk.version>
+        <rapid-java-sdk.sdk.version>5.3.0</rapid-java-sdk.sdk.version>
     </properties>
 
     <repositories>