Update item-nbt-api to support 1.21.2/3

Author: Archy-X

bukkit/build.gradle.kts

@@ -18,7 +18,6 @@ repositories {
     mavenCentral()
     mavenLocal()
     maven("https://s01.oss.sonatype.org/content/repositories/snapshots/")
-    maven("https://github.com/deanveloper/SkullCreator/raw/mvn-repo")
     maven("https://repo.aikar.co/content/groups/aikar/")
     maven("https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
     maven("https://repo.codemc.io/repository/maven-public/")
@@ -36,7 +35,7 @@ dependencies {
     implementation(project(":common"))
     implementation(project(":api-bukkit"))
     implementation("co.aikar:acf-paper:0.5.1-SNAPSHOT")
-    implementation("de.tr7zw:item-nbt-api:2.13.2")
+    implementation("de.tr7zw:item-nbt-api:2.13.3-SNAPSHOT")
     implementation("org.bstats:bstats-bukkit:3.0.2")
     implementation("net.kyori:adventure-text-minimessage:4.16.0")
     implementation("net.kyori:adventure-platform-bukkit:4.3.3")