Update dependency com.github.gmazzo.buildconfig to v5.7.0

Author: renovate[bot]

gradle/libs.versions.toml

@@ -2,7 +2,7 @@
 kotlin = "2.2.20"
 ksp = "2.2.20-2.0.3"
 kotlinx-serialization = "1.9.0"
-buildconfig = "5.6.8"
+buildconfig = "5.7.0"
 kotlinpoet = "2.2.0"
 shadow = "9.2.2"
 dokka = "2.0.0"