Bump spring-webmvc from 4.0.9.RELEASE to 5.2.20.RELEASE

Bumps [spring-webmvc](https://github.com/spring-projects/spring-framework) from 4.0.9.RELEASE to 5.2.20.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v4.0.9.RELEASE...v5.2.20.RELEASE)

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

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

pom.xml

@@ -12,7 +12,7 @@
         <jeecg-common-plugin-ui.version>1.0.0</jeecg-common-plugin-ui.version>
 
 		<!-- springmvc -->
-		<spring.version>4.0.9.RELEASE</spring.version>
+		<spring.version>5.2.20.RELEASE</spring.version>
 		<!-- hibernate -->
 		<hibernate.version>4.1.0.Final</hibernate.version>
 		<hibernate-validator.version>4.2.0.Final</hibernate-validator.version>