Updated Upstream (Bukkit/CraftBukkit/Spigot)

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:
cdfe62e4 Update to Minecraft 1.20.4

CraftBukkit Changes:
51eea725f Update to Minecraft 1.20.4

Spigot Changes:
ce0f71e4 Update to Minecraft 1.20.4

patches/api/0001-Convert-project-to-Gradle.patch

@@ -124,7 +124,7 @@ index 0000000000000000000000000000000000000000..41e77b687df6480adf8f5e21daad105d
 +}
 diff --git a/pom.xml b/pom.xml
 deleted file mode 100644
-index 061d8bcc258d8f1936462a9f92e9d4f7617e716f..0000000000000000000000000000000000000000
+index 6a2befb4a0172e2208775887a7ebe25ed8ba5e4c..0000000000000000000000000000000000000000
 --- a/pom.xml
 +++ /dev/null
 @@ -1,278 +0,0 @@
@@ -135,7 +135,7 @@ index 061d8bcc258d8f1936462a9f92e9d4f7617e716f..00000000000000000000000000000000
 -
 -    <groupId>org.spigotmc</groupId>
 -    <artifactId>spigot-api</artifactId>
--    <version>1.20.3-R0.1-SNAPSHOT</version>
+-    <version>1.20.4-R0.1-SNAPSHOT</version>
 -    <packaging>jar</packaging>
 -
 -    <name>Spigot-API</name>