fix: rename webhook filter bean to avoid name collision with WebhookFilter class

src/main/java/com/onixbyte/deltaforceguide/config/FilterConfig.java

@@ -9,7 +9,7 @@ import org.springframework.context.annotation.Configuration;
 public class FilterConfig {
 
     @Bean
-    public FilterRegistrationBean<WebhookFilter> webhookFilter(WebhookFilter webhookFilter) {
+    public FilterRegistrationBean<WebhookFilter> webhookFilterBean(WebhookFilter webhookFilter) {
         var registrationBean = new FilterRegistrationBean<WebhookFilter>();
 
         registrationBean.setFilter(webhookFilter);