Replace old version command with brigadier equivalent (#12502)

---------

Co-authored-by: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>

paper-api/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java

@@ -21,12 +21,24 @@ public interface VersionFetcher {
     /**
      * Gets the version message to cache and show to command senders.
      *
-     * <p>NOTE: This is run in a new thread separate from that of the command processing thread</p>
+     * @return the message to show when requesting a version
+     * @apiNote This method may involve a web request which will block the executing thread
+     */
+    Component getVersionMessage();
+
+    /**
+     * Gets the version message to cache and show to command senders.
      *
      * @param serverVersion the current version of the server (will match {@link Bukkit#getVersion()})
      * @return the message to show when requesting a version
+     * @apiNote This method may involve a web request which will block the current thread
+     * @see #getVersionMessage()
+     * @deprecated {@code serverVersion} is not required
      */
-    Component getVersionMessage(String serverVersion);
+    @Deprecated
+    default Component getVersionMessage(String serverVersion) {
+        return getVersionMessage();
+    }
 
     @ApiStatus.Internal
     class DummyVersionFetcher implements VersionFetcher {
@@ -37,7 +49,7 @@ public interface VersionFetcher {
         }
 
         @Override
-        public Component getVersionMessage(final String serverVersion) {
+        public Component getVersionMessage() {
             Bukkit.getLogger().warning("Version provider has not been set, cannot check for updates!");
             Bukkit.getLogger().info("Override the default implementation of org.bukkit.UnsafeValues#getVersionFetcher()");
             new Throwable().printStackTrace();