Bump xstream from 1.4.9 to 1.4.19 in /JMapper Framework

Bumps [xstream](https://github.com/x-stream/xstream) from 1.4.9 to 1.4.19.
- [Release notes](https://github.com/x-stream/xstream/releases)
- [Commits](https://github.com/x-stream/xstream/commits)

---
updated-dependencies:
- dependency-name: com.thoughtworks.xstream:xstream
  dependency-type: direct:production
...

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Author: dependabot[bot]

JMapper Framework/pom.xml

@@ -185,7 +185,7 @@
 	<dependency>
 		<groupId>com.thoughtworks.xstream</groupId>
 		<artifactId>xstream</artifactId>
-		<version>1.4.18</version>
+		<version>1.4.19</version>
 	</dependency>
 
 	<dependency>