Bump spring-security.version from 6.0.3 to 6.2.1

Bumps `spring-security.version` from 6.0.3 to 6.2.1.

Updates `org.springframework.security:spring-security-web` from 6.0.3 to 6.2.1
- [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@6.0.3...6.2.1)

Updates `org.springframework.security:spring-security-config` from 6.0.3 to 6.2.1
- [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@6.0.3...6.2.1)

Updates `org.springframework.security:spring-security-test` from 6.0.3 to 6.2.1
- [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@6.0.3...6.2.1)

---
updated-dependencies:
- dependency-name: org.springframework.security:spring-security-web
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.springframework.security:spring-security-config
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.springframework.security:spring-security-test
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

pom.xml

@@ -60,7 +60,7 @@
         <jackson.version>2.15.1</jackson.version>
         <problem.version>0.27.1</problem.version>
         <spring.version>6.0.2</spring.version>
-        <spring-security.version>6.0.3</spring-security.version>
+        <spring-security.version>6.2.1</spring-security.version>
         <spring-boot.version>3.0.6</spring-boot.version>
         <junit-jupiter.version>5.9.2</junit-jupiter.version>
         <jakarta-el.version>4.0.2</jakarta-el.version>