Update dependency com.vanniktech.maven.publish to v0.28.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -4,7 +4,7 @@ kotlin = "1.9.20"
 kotlinxSerialization = "1.6.1"
 ktor = "2.3.8"
 skie = "0.6.1"
-vanniktechMavenPublish = "0.25.3"
+vanniktechMavenPublish = "0.28.0"
 
 [libraries]
 kotlinx-serializationJson = { module = "org.jetbrains.kotlinx:kotlinx-serialization-json", version.ref = "kotlinxSerialization" }