Adventure 4.9.1 (#6634)

Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>

patches/api/0002-Build-system-changes.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Build system changes
 
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index 6e64a444fb20aabaabfb15a30d645702c11c2da8..db6a7b2e60da0d96ef96545a781f1e056482d6ff 100644
+index fd30d2e6d3716777be7bc2f28267ab5b03131342..8cabc75b2272dbb448c1f04a0ef6b0339d9f6b17 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
-@@ -17,12 +17,14 @@ dependencies {
+@@ -17,15 +17,23 @@ dependencies {
      api("com.google.code.gson:gson:2.8.0")
      api("net.md-5:bungeecord-chat:1.16-R0.4")
      api("org.yaml:snakeyaml:1.28")
@@ -24,7 +24,16 @@ index 6e64a444fb20aabaabfb15a30d645702c11c2da8..db6a7b2e60da0d96ef96545a781f1e05
      compileOnly(annotations)
      testCompileOnly(annotations)
  
-@@ -61,7 +63,7 @@ tasks.withType<Javadoc>().configureEach {
++    // Paper start - add checker
++    val checkerAnnotations = "org.checkerframework:checker-qual:3.18.0"
++    compileOnlyApi(checkerAnnotations)
++    testCompileOnly(checkerAnnotations)
++    // Paper end
++
+     testImplementation("junit:junit:4.13.1")
+     testImplementation("org.hamcrest:hamcrest-library:1.3")
+     testImplementation("org.ow2.asm:asm-tree:9.2")
+@@ -61,7 +69,7 @@ tasks.withType<Javadoc>().configureEach {
      (options as StandardJavadocDocletOptions).links(
          "https://guava.dev/releases/21.0/api/docs/",
          "https://javadoc.io/doc/org.yaml/snakeyaml/1.28/",