fix: fixup some compiler warns

build.gradle

@@ -64,6 +64,7 @@ allprojects {
     apply plugin: 'java'
 
     compileJava.options.encoding = 'UTF-8'
+    compileJava.options.compilerArgs += ['-Xlint:unchecked', '-Xlint:deprecation']
     compileJava.options.release.set Integer.parseInt(rootProject.ext.javaVersion)
     javadoc.options.encoding = 'UTF-8'
     javadoc.options.addStringOption('Xdoclint:none', '-quiet')

bukkit/src/main/java/net/william278/husksync/BukkitHuskSync.java

@@ -78,6 +78,7 @@ import java.util.stream.Collectors;
 
 @Getter
 @NoArgsConstructor
+@SuppressWarnings("unchecked")
 public class BukkitHuskSync extends JavaPlugin implements HuskSync, BukkitTask.Supplier,
         BukkitEventDispatcher, BukkitMapPersister {
 

bukkit/src/main/java/net/william278/husksync/data/BukkitSerializer.java

@@ -230,7 +230,7 @@ public class BukkitSerializer {
 
         @Override
         public BukkitData.PersistentData deserialize(@NotNull String serialized) throws DeserializationException {
-            return BukkitData.PersistentData.from(new NBTContainer(serialized));
+            return BukkitData.PersistentData.from((NBTContainer) NBT.parseNBT(serialized));
         }
 
         @NotNull

fabric/src/main/java/net/william278/husksync/FabricHuskSync.java

@@ -78,6 +78,7 @@ import java.util.logging.Level;
 
 @Getter
 @NoArgsConstructor
+@SuppressWarnings("unchecked")
 public class FabricHuskSync implements DedicatedServerModInitializer, HuskSync, FabricTask.Supplier,
         FabricEventDispatcher {
 

paper/src/main/java/net/william278/husksync/PaperHuskSync.java

@@ -30,7 +30,7 @@ import org.jetbrains.annotations.NotNull;
 
 import java.util.UUID;
 
-@SuppressWarnings("unused")
+@SuppressWarnings({"unchecked", "unused"})
 public class PaperHuskSync extends BukkitHuskSync {
 
     @NotNull