Bump spring-security-core from 4.2.2.RELEASE to 5.5.7

Bumps [spring-security-core](https://github.com/spring-projects/spring-security) from 4.2.2.RELEASE to 5.5.7.
- [Release notes](https://github.com/spring-projects/spring-security/releases)
- [Changelog](https://github.com/spring-projects/spring-security/blob/main/RELEASE.adoc)
- [Commits](https://github.com/spring-projects/spring-security/compare/4.2.2.RELEASE...5.5.7)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index ebc07e2..6a2f4ee 100644
--- a/pom.xml
+++ b/pom.xml
@@ -507,7 +507,7 @@
         <fastutil.version>6.5.16</fastutil.version>
         <guice.version>4.1.0</guice.version>
         <spring.version>4.3.8.RELEASE</spring.version>
-        <spring.security.version>4.2.2.RELEASE</spring.security.version>
+        <spring.security.version>5.5.7</spring.security.version>
         <spring-ldap-core.version>2.3.1.RELEASE</spring-ldap-core.version>
         <javax.servlet.version>3.1.0</javax.servlet.version>
         <guava.version>19.0</guava.version>