Updated Upstream (Bukkit/CraftBukkit)

Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
75a0ee4f SPIGOT-6691: Material.LAVA_CAULDRON is not Levelled

CraftBukkit Changes:
e1c96e50 SPIGOT-6682: Blocking with shield not reset after die
97f629b6 SPIGOT-6220: Structures in the world with custom generator not work
85379258 Increase outdated build delay
f7f8dce4 SPIGOT-6552: Some inventory types reset cursor on switch

patches/server/0003-Build-system-changes.patch

@@ -71,7 +71,7 @@ index 8d27de2c9da08ca32ff18fc4b8b02ea583edfc1c..31343d49cf38063976e0f8c93264a4f3
          "org.eclipse.aether", "org.eclipse.sisu", "org.objectweb.asm"
      ).forEach { pack ->
 diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
-index b06a4c8f5e1dfcbda171910279d6861dc3d4d2e7..7f818c6bed25e0b793cca268b786f61440c429ef 100644
+index 705486f8b02957c131d464bfd862247c555d2d51..2e22decfc52951ae32987c5147438e793227bd13 100644
 --- a/src/main/java/org/bukkit/craftbukkit/Main.java
 +++ b/src/main/java/org/bukkit/craftbukkit/Main.java
 @@ -190,7 +190,7 @@ public class Main {
@@ -82,7 +82,7 @@ index b06a4c8f5e1dfcbda171910279d6861dc3d4d2e7..7f818c6bed25e0b793cca268b786f614
 +                    Date buildDate = new java.text.SimpleDateFormat("yyyy-MM-dd HH:mm:ss Z").parse(Main.class.getPackage().getImplementationVendor()); // Paper
  
                      Calendar deadline = Calendar.getInstance();
-                     deadline.add(Calendar.DAY_OF_YEAR, -7);
+                     deadline.add(Calendar.DAY_OF_YEAR, -28);
 diff --git a/src/main/java/org/bukkit/craftbukkit/util/Versioning.java b/src/main/java/org/bukkit/craftbukkit/util/Versioning.java
 index 93046379d0cefd5d3236fc59e698809acdc18f80..774556a62eb240da42e84db4502e2ed43495be17 100644
 --- a/src/main/java/org/bukkit/craftbukkit/util/Versioning.java