Update dependency com.google.code.gson:gson to v2.12.0 (#3272)

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

Author: renovate[bot]

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ checkerQual = "3.48.4"
 coroutines = "1.9.0"
 dokka = "2.0.0"
 grpc = "1.70.0"
-gson = "2.11.0"
+gson = "2.12.0"
 guava = "32.0.1-jre"
 javapoet = "0.6.0"
 jimfs = "1.3.0"