Bump spring-beans in /taverna-workbench-impl

Bumps [spring-beans](https://github.com/spring-projects/spring-framework) from 4.3.1.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/v4.3.1.RELEASE...v5.2.20.RELEASE)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/taverna-workbench-impl/pom.xml b/taverna-workbench-impl/pom.xml
index a148726..af80c64 100644
--- a/taverna-workbench-impl/pom.xml
+++ b/taverna-workbench-impl/pom.xml
@@ -83,7 +83,7 @@
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-beans</artifactId>
-			<version>4.3.1.RELEASE</version>
+			<version>5.2.20.RELEASE</version>
 		</dependency>
 
 		<dependency>