Fix conjuntion of -Werror,-Wsuggest-override with google/benchmark

GitOrigin-RevId: cba533febc1e8a82f98f7ff5e0d083f57f865d26
diff --git a/benchmarks/CMakeLists.txt b/benchmarks/CMakeLists.txt
index 2275dad..c85e410 100644
--- a/benchmarks/CMakeLists.txt
+++ b/benchmarks/CMakeLists.txt
@@ -88,7 +88,7 @@
 )
 add_dependencies(libc-benchmark google-benchmark)
 target_include_directories(libc-benchmark
-    PUBLIC
+    SYSTEM PUBLIC
     "${GOOGLE_BENCHMARK_LIBC_INSTALL}/include"
 )
 target_link_libraries(libc-benchmark