Bump spring-core from 3.2.9.RELEASE to 4.3.19.RELEASE in /coreservice

Bumps [spring-core](https://github.com/spring-projects/spring-framework) from 3.2.9.RELEASE to 4.3.19.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v3.2.9.RELEASE...v4.3.19.RELEASE)
Signed-off-by: Ndependabot[bot] <support@github.com>

coreservice/pom.xml

@@ -31,7 +31,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-core</artifactId>
-            <version>3.2.9.RELEASE</version>
+            <version>4.3.19.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>