MNT: move back to 'cd tools' hack [wheel build]

Author: ngoldbaum

tools/wheels/cibw_test_command.sh

@@ -4,7 +4,9 @@ set -xe
 
 PROJECT_DIR="$1"
 
-export PYTHONSAFEPATH=1
+if [ -d tools ]; then
+    cd tools
+fi
 
 python -m pip install threadpoolctl
 python -c "import numpy; numpy.show_config()"