Bump spring-security-core in /eXperDB-Proxy-Agent

Bumps [spring-security-core](https://github.com/spring-projects/spring-security) from 5.2.8.RELEASE to 5.2.11.RELEASE.
- [Release notes](https://github.com/spring-projects/spring-security/releases)
- [Changelog](https://github.com/spring-projects/spring-security/blob/main/RELEASE.adoc)
- [Commits](spring-projects/spring-security@5.2.8.RELEASE...5.2.11.RELEASE)

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

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

Author: dependabot[bot]

eXperDB-Proxy-Agent/pom.xml

@@ -15,7 +15,7 @@
 		<spring-framework.version>5.2.13.RELEASE</spring-framework.version>
 	    <slf4j.version>1.7.32</slf4j.version>
 		<log4j.version>2.17.1</log4j.version>
-		<spring-security.version>5.2.8.RELEASE</spring-security.version>
+		<spring-security.version>5.2.11.RELEASE</spring-security.version>
 		<spring-batch.version>4.2.5.RELEASE</spring-batch.version>
 	</properties>