fix: dont optimize out benches #187

Job	Run time
tests	17s
cmake-integration-tests (instrumentation, ubuntu-latest)	1m 25s
bazel-integration-tests (off, ubuntu-latest)	23s
bazel-integration-tests (walltime, codspeed-macro)	1m 16s
cmake-integration-tests (walltime, codspeed-macro)	2m 6s
cmake-integration-tests (off, ubuntu-latest)	51s
windows-cmake-build (walltime)	2m 6s
windows-bazel-build (walltime)	1m 39s
windows-bazel-build (off)	1m 8s
windows-cmake-build (off)	1m 47s
bazel-integration-tests (instrumentation, ubuntu-latest)	1m 55s
	14m 53s

Provide feedback