Tighten JSON-free version parsing

Co-authored-by: NotMyFault <13383509+NotMyFault@users.noreply.github.com>

Author: Copilot

src/main/java/com/thevoxelbox/voxelsniper/VoxelSniperPlugin.java

@@ -42,7 +42,7 @@
 public class VoxelSniperPlugin extends JavaPlugin {
 
     private static final long HOURS_TO_TICKS = 72000L;
-    private static final Pattern VERSION_NAME_PATTERN = Pattern.compile("\"name\"\\s*:\\s*\"([^\"]+)\"");
+    private static final Pattern VERSION_ENTRY_PATTERN = Pattern.compile("\\{[^{}]*\"name\"\\s*:\\s*\"([^\"]+)\"[^{}]*}");
 
     private static final Logger LOGGER = LogManagerCompat.getLogger();
     public static VoxelSniperPlugin plugin;
@@ -285,7 +285,7 @@ private double updateCheck(double currentVersion) {
                 }
             }
 
-            Matcher matcher = VERSION_NAME_PATTERN.matcher(response);
+            Matcher matcher = VERSION_ENTRY_PATTERN.matcher(response);
             String latestVersionName = null;
             while (matcher.find()) {
                 latestVersionName = matcher.group(1);