Add retrace_benchmark dependency to downloadDeps

Change-Id: Iced711674c405cb4e2d3176b018dbbbb7159f625
diff --git a/build.gradle b/build.gradle
index e2ca554..aa31e9d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -379,6 +379,7 @@
                 "proguard/proguard5.2.1",
                 "proguard/proguard6.0.1",
                 "proguard/proguard-7.0.0",
+                "retrace_benchmark",
                 "retrace/binary_compatibility",
                 "r8",
                 "r8-releases/2.0.74",