Bump spring-core from 5.2.8.RELEASE to 5.2.9.RELEASE

Bumps [spring-core](https://github.com/spring-projects/spring-framework) from 5.2.8.RELEASE to 5.2.9.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.2.8.RELEASE...v5.2.9.RELEASE)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -78,7 +78,7 @@
             <dependency>
                 <groupId>org.springframework</groupId>
                 <artifactId>spring-core</artifactId>
-                <version>5.2.8.RELEASE</version>
+                <version>5.2.9.RELEASE</version>
                 <scope>compile</scope>
             </dependency>
         </dependencies>