Bump spring-beans in /spring-mvc-test

Bumps [spring-beans](https://github.com/spring-projects/spring-framework) from 5.0.8.RELEASE to 5.2.20.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.0.8.RELEASE...v5.2.20.RELEASE)

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

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

Author: dependabot[bot]

spring-mvc-test/pom.xml

@@ -12,7 +12,7 @@
 
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-	<spring.version>5.0.8.RELEASE</spring.version>
+	<spring.version>5.2.20.RELEASE</spring.version>
 	<junit.version>4.12</junit.version>
 	<javax.servlet.version>4.0.1</javax.servlet.version>
 	<jackson.version>2.9.6</jackson.version>