Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/0004-Code-Generation.patch

@@ -7,7 +7,7 @@ Currently includes generated key holder classes for types
 used in the Registry Modification API
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index 768024b2b4584fd7dd86f068c0e79c89ffc5faa1..f11a22ab01e97e51619c96f2d8a78a99297efc59 100644
+index d91ce069b5fce4afb245691bd90f448d6dfdc492..f715ae19c1e71d854a722130d3db447887fa2d2b 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
 @@ -1,6 +1,7 @@
@@ -18,7 +18,7 @@ index 768024b2b4584fd7dd86f068c0e79c89ffc5faa1..f11a22ab01e97e51619c96f2d8a78a99
  }
  
  java {
-@@ -45,6 +46,22 @@ dependencies {
+@@ -46,6 +47,22 @@ dependencies {
      testImplementation("org.ow2.asm:asm-tree:9.7")
  }
  
@@ -41,7 +41,7 @@ index 768024b2b4584fd7dd86f068c0e79c89ffc5faa1..f11a22ab01e97e51619c96f2d8a78a99
  configure<PublishingExtension> {
      publications.create<MavenPublication>("maven") {
          from(components["java"])
-@@ -121,3 +138,14 @@ tasks.check {
+@@ -122,3 +139,14 @@ tasks.check {
      dependsOn(scanJar)
  }
  // Paper end