Use wall time runner

[seddonym]

This isn't working for some reason.

Asked here https://discord.com/channels/1065233827569598464/1358833234607083581

[codspeed-hq]

CodSpeed Walltime Performance Report

Congrats! CodSpeed is installed 🎉

🆕 21 new benchmarks were detected.

You will start to see performance impacts in the reports once the benchmarks are run from your default branch.

Detected benchmarks

• test_deep_layers_large_graph_kept (1.5 ms)
• test_deep_layers_large_graph_violated (1.5 ms)
• test_top_level_large_graph_kept (16.5 ms)
• test_top_level_large_graph_violated (164 ms)
• test_chain_found (15 µs)
• test_no_chain (667.8 µs)
• test_chains_found (27.9 µs)
• test_no_chains (669.9 µs)
• test_build_django_from_cache_a_few_misses[15] (138.2 ms)
• test_build_django_from_cache_a_few_misses[2] (137 ms)
• test_build_django_from_cache_no_misses (137.1 ms)
• test_build_django_uncached (4.5 s)
• test_copy_graph (77.7 ms)
• test_find_descendants (37.2 ms)
• test_find_downstream_modules (74.3 µs)
• test_find_matching_direct_imports (26.7 ms)
• test_find_matching_modules (5.8 ms)
• test_find_upstream_modules (2.6 ms)
• test_get_import_details (128.8 µs)
• test_modules_property_first_access (28.3 ms)
• test_modules_property_many_accesses (28.5 ms)