chore(deps): Update immutables to v2.11.6

Author: renovate[bot]

gradle/libs.versions.toml

@@ -12,7 +12,7 @@ errorprone = "2.27.1"
 geantyref = "1.3.16"
 jmh = "1.37"
 apiguardian = "1.1.2"
-immutables = "2.10.1"
+immutables = "2.11.6"
 
 # integration
 guice = "7.0.0"