Bump org.springframework:spring-expression in /training-data-jars

Bumps [org.springframework:spring-expression](https://github.com/spring-projects/spring-framework) from 4.3.9.RELEASE to 5.3.39.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v4.3.9.RELEASE...v5.3.39)

---
updated-dependencies:
- dependency-name: org.springframework:spring-expression
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

training-data-jars/pom.xml

@@ -175,7 +175,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-expression</artifactId>
-            <version>4.3.9.RELEASE</version>
+            <version>5.3.39</version>
         </dependency>
         <!--dependency>
             <groupId>org.springframework.security</groupId>