chore(deps): update com.google.guava:guava-testlib to v33.4.8-jre

Author: renovate[bot]

gradle/libs.versions.toml

@@ -41,7 +41,7 @@ shadow = "8.1.8"
 # Test
 junit = "5.11.4"
 truth = "1.4.4"
-guava-testlib = "33.4.0-jre"
+guava-testlib = "33.4.8-jre"
 mockito = "5.15.2"