chore(deps): update plugin download to v5.6.0 (#285)

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

gradle/libs.versions.toml

@@ -30,7 +30,7 @@ serialization = "org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3"
 junit = ["junit-core", "junit-engine", "junit-launcher"]
 
 [plugins]
-download = "de.undercouch.download:5.5.0"
+download = "de.undercouch.download:5.6.0"
 gradle-publish = "com.gradle.plugin-publish:1.2.1"
 kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 kotlin-kapt = { id = "org.jetbrains.kotlin.kapt", version.ref = "kotlin" }