Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@fa0dd15d add missed nullability annotations
PaperMC/Paper@b6d70a9c Generators
PaperMC/Paper@b92137c1 load the PDC for new block entities
PaperMC/Paper@06a26ec2 update legacy test
PaperMC/Paper@c4f0b2b0 update more test
PaperMC/Paper@77382fcb fix unbreakable shields
PaperMC/Paper@9e08de6e Re-add old SmithingTrimRecipe constructors
PaperMC/Paper@d2afd149 Bump some more numbers to 1.21.5
PaperMC/Paper@cf1455e5 Ignore private methods in MaterialReroutingTest
PaperMC/Paper@ce91a8ca Move out unapplied feature patches

purpur-server/minecraft-patches/sources/net/minecraft/world/level/Level.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/level/Level.java
 +++ b/net/minecraft/world/level/Level.java
-@@ -158,11 +_,55 @@
+@@ -159,11 +_,55 @@
      }
      // Paper end - add paper world config
  
@@ -56,7 +56,7 @@
      public CraftWorld getWorld() {
          return this.world;
      }
-@@ -205,6 +_,8 @@
+@@ -207,6 +_,8 @@
      ) {
          this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) levelData).getLevelName()); // Spigot
          this.paperConfig = paperWorldConfigCreator.apply(this.spigotConfig); // Paper - create paper world config
@@ -65,7 +65,7 @@
          this.generator = gen;
          this.world = new CraftWorld((ServerLevel) this, gen, biomeProvider, env);
  
-@@ -1409,4 +_,14 @@
+@@ -1413,4 +_,14 @@
              return this.id;
          }
      }