Suppress AspectJ compiler warnings in spring-security-aspects

- Added -Xlint:ignore to compileAspectj task
- Added -Xlint:ignore to compileTestAspectj task

Fixes the following AspectJ warnings:
- AnnotationSecurityAspect.aj:72 [warning] advice defined
- AbstractMethodInterceptorAspect.aj:36 [warning] advice defined

These warnings occur because the AspectJ compiler detects that
advice in deprecated aspect classes may not match any join points,
which is expected behavior for deprecated code maintained for
backward compatibility.

Contributes to gh-18405

Signed-off-by: Park JuHyeong <wngud5957@naver.com>

aspects/spring-security-aspects.gradle

@@ -1,13 +1,16 @@
 apply plugin: 'io.spring.convention.spring-module'
 apply plugin: 'io.freefair.aspectj'
+apply plugin: 'compile-warnings-error'
 
 compileAspectj {
 	sourceCompatibility = "17"
 	targetCompatibility = "17"
+	ajcOptions.compilerArgs += ['-Xlint:ignore']
 }
 compileTestAspectj {
 	sourceCompatibility = "17"
 	targetCompatibility = "17"
+	ajcOptions.compilerArgs += ['-Xlint:ignore']
 }
 
 dependencies {