Update plugin shadow to v9.0.0-rc2

Author: renovate[bot]

gradle/libs.versions.toml

@@ -104,5 +104,5 @@ jreleaser = { id = "org.jreleaser", version = "1.19.0" }
 kotlin = { id = "org.jetbrains.kotlin.jvm", version = "2.2.0" }
 nullaway = { id = "net.ltgt.nullaway", version = "2.2.0" }
 plantuml = { id = "io.freefair.plantuml", version = "8.14" }
-shadow = { id = "com.gradleup.shadow", version = "9.0.0-rc1" }
+shadow = { id = "com.gradleup.shadow", version = "9.0.0-rc2" }
 spotless = { id = "com.diffplug.spotless", version = "7.2.1" }