Update to Minecraft 1.20.3

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/GameRule.java

@@ -61,6 +61,11 @@ public final class GameRule<T> {
      */
     public static final GameRule<Boolean> DO_MOB_LOOT = new GameRule<>("doMobLoot", Boolean.class);
 
+    /**
+     * Whether projectiles can break blocks.
+     */
+    public static final GameRule<Boolean> PROJECTILES_CAN_BREAK_BLOCKS = new GameRule<>("projectilesCanBreakBlocks", Boolean.class);
+
     /**
      * Whether mobs should naturally spawn.
      */
@@ -243,6 +248,12 @@ public final class GameRule<T> {
      */
     public static final GameRule<Integer> MAX_COMMAND_CHAIN_LENGTH = new GameRule<>("maxCommandChainLength", Integer.class);
 
+    /**
+     * Determines the number of different commands/functions which execute
+     * commands can fork into.
+     */
+    public static final GameRule<Integer> MAX_COMMAND_FORK_COUNT = new GameRule<>("maxCommandForkCount", Integer.class);
+
     /**
      * Determines the maximum number of blocks which a command can modify.
      */
@@ -255,6 +266,18 @@ public final class GameRule<T> {
     public static final GameRule<Integer> PLAYERS_SLEEPING_PERCENTAGE = new GameRule<>("playersSleepingPercentage", Integer.class);
     public static final GameRule<Integer> SNOW_ACCUMULATION_HEIGHT = new GameRule<>("snowAccumulationHeight", Integer.class);
 
+    /**
+     * The amount of time a player must stand in a nether portal before the
+     * portal activates.
+     */
+    public static final GameRule<Integer> PLAYERS_NETHER_PORTAL_DEFAULT_DELAY = new GameRule<>("playersNetherPortalDefaultDelay", Integer.class);
+
+    /**
+     * The amount of time a player in creative mode must stand in a nether
+     * portal before the portal activates.
+     */
+    public static final GameRule<Integer> PLAYERS_NETHER_PORTAL_CREATIVE_DELAY = new GameRule<>("playersNetherPortalCreativeDelay", Integer.class);
+
     // All GameRules instantiated above this for organizational purposes
     private final String name;
     private final Class<T> type;