fix: annotate ExpireManager with @Inject

Core/src/main/java/com/plotsquared/core/command/DebugExec.java

@@ -140,8 +140,7 @@ public class DebugExec extends SubCommand {
                     return true;
                 }
                 case "start-expire" -> {
-                    ExpireManager expireManager = PlotSquared.platform().expireManager() == null ? new ExpireManager(this.eventDispatcher) : PlotSquared.platform().expireManager();
+                    if (PlotSquared.platform().expireManager().runAutomatedTask()) {
-                    if (expireManager.runAutomatedTask()) {
                         player.sendMessage(TranslatableCaption.of("debugexec.expiry_started"));
                     } else {
                         player.sendMessage(TranslatableCaption.of("debugexec.expiry_already_started"));
@@ -149,7 +148,7 @@ public class DebugExec extends SubCommand {
                     return true;
                 }
                 case "stop-expire" -> {
-                    if (PlotSquared.platform().expireManager() == null || !PlotSquared.platform().expireManager().cancelTask()) {
+                    if (!PlotSquared.platform().expireManager().cancelTask()) {
                         player.sendMessage(TranslatableCaption.of("debugexec.task_halted"));
                     } else {
                         player.sendMessage(TranslatableCaption.of("debugexec.task_cancelled"));

Core/src/main/java/com/plotsquared/core/plot/expiration/ExpireManager.java

@@ -18,6 +18,7 @@
  */
 package com.plotsquared.core.plot.expiration;
 
+import com.google.inject.Inject;
 import com.plotsquared.core.PlotPlatform;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.caption.Caption;
@@ -76,6 +77,7 @@ public class ExpireManager {
      */
     private int running;
 
+    @Inject
     public ExpireManager(final @NonNull EventDispatcher eventDispatcher) {
         this.tasks = new ArrayDeque<>();
         this.dates_cache = new ConcurrentHashMap<>();