chore(deps): update plugin buildkonfig to v0.15.1 (#71)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -152,5 +152,5 @@ kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", versi
 
 ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
 poko = { id = "dev.drewhamilton.poko", version = "0.15.2" }
-buildkonfig = { id = "com.codingfeline.buildkonfig", version = "0.15.0" }
+buildkonfig = { id = "com.codingfeline.buildkonfig", version = "0.15.1" }
 spotless = { id = "com.diffplug.gradle.spotless", version = "6.25.0" }