Update dependency de.tr7zw:item-nbt-api to v2.15.4 (#244)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

plugin/build.gradle.kts

@@ -4,7 +4,7 @@ dependencies {
     multiVersionProjects.forEach { implementation(it) }
 
     // Dependencies that we want to shade in
-    implementation("de.tr7zw:item-nbt-api:2.15.3")
+    implementation("de.tr7zw:item-nbt-api:2.15.4")
     implementation("com.iridium:IridiumColorAPI:1.0.9")
     implementation("com.fasterxml.jackson.core:jackson-databind:2.20.1")
     implementation("com.fasterxml.jackson.core:jackson-core:2.20.1")