fixup: ls in /etc to avoid different results when building locally

Author: not-matthias

.github/workflows/codspeed.yml

@@ -15,7 +15,7 @@ jobs:
         # IMPORTANT: The binary has to match the architecture of the runner!
         cmd:
           - bench/testdata/take_strings-aarch64
-          - ls -alh
+          - ls -alh /etc
           - echo Hello, World!
         valgrind:
           - "3.26.0"