feature: add stalled user deletion check, add quartz task management

• feature: add stalled user deletion check, add quartz task management

Added feature that will message the webdev mailbox for users that have long standing deletion requests that are encroaching on GDPR limit.

Additionally configures the quartz scheduler extension, as otherwise we'd oversend emails to the webdev inbox in the case of email triggers.

Resolves #107

src/main/java/org/eclipsefoundation/profile/config/StalledDeletionCheckConfig.java

+/*********************************************************************
+* Copyright (c) 2024 Eclipse Foundation.
+*
+* This program and the accompanying materials are made
+* available under the terms of the Eclipse Public License 2.0
+* which is available at https://www.eclipse.org/legal/epl-2.0/
+*
+* SPDX-License-Identifier: EPL-2.0
+**********************************************************************/
+package org.eclipsefoundation.profile.config;
+
+import java.time.Period;
+import java.util.List;
+import java.util.Optional;
+
+import io.smallrye.config.ConfigMapping;
+import io.smallrye.config.WithDefault;
+
+/**
+ * Consolidates settings around the user deletion stall monitor task.
+ */
+@ConfigMapping(prefix = "eclipse.profile.scheduled.stall-check")
+public interface StalledDeletionCheckConfig {
+
+    /**
+     * @return true if the deletion stall monitor should run, false otherwise
+     */
+    @WithDefault("true")
+    boolean enabled();
+    
+    /**
+     * Slightly earlier than true max age, as we want to address these issues before they become GDPR issues, not after.
+     * 
+     * @return maxage of requests before the team is notified.
+     */
+    @WithDefault("P25D")
+    Period maxage();
+    
+    /**
+     * @return email address that the user deletion stall notification should be sent to.
+     */
+    @WithDefault("webdev@eclipse-foundation.org")
+    String recipient();
+    
+    Optional<List<String>> cc();
+}