5.0.0 cannot be run with Java 17 (DefaultSecurityConfig.groovy - Unsupported class file major version 61)

### Expected Behavior

We are able to run Grails 5 apps with JDK 17 (`tomcat:9.0.60-jdk17-corretto`) but since using grails-spring-security-core 5.0.0 Java throws an error:

```
BUG! exception in phase 'semantic analysis' in source unit 'jar:file:/usr/local/tomcat/webapps/ROOT/WEB-INF/lib/spring-security-core-5.0.0-plain.jar!/DefaultSecurityConfig.groovy' Unsupported class file major version 61
```

Grails 5.1.4 runs with JDK 17 but the spring security plugin might have been build with an old JDK (or DefaultSecurityConfig was never touched).

### Actual Behaviour

_No response_

### Steps To Reproduce

_No response_

### Environment Information

Docker-Image: tomcat:9.0.60-jdk17-corretto

### Example Application

_No response_

### Version

5.1.4

Start by reproducing the failure with tomcat:9.0.60-jdk17-corretto and Grails 5.1.4, then inspect DefaultSecurityConfig.groovy inside spring-security-core-5.0.0-plain.jar. Determine whether the plugin is compatible with JDK 17; done means the application starts without the unsupported class file major version 61 error.

Written by the indexing model from the issue text.