Log TMPDIR and PIP_CACHE_DIR in install script

Add debug output for TMPDIR and PIP_CACHE_DIR

Author: jagapiou

bin/install.sh

@@ -18,6 +18,10 @@
 set -euxo pipefail
 cd "$(dirname "$0")/.."
 
+
+echo "TMPDIR=${TMPDIR}"
+echo "PIP_CACHE_DIR=${PIP_CACHE_DIR}"
+
 echo 'Installing requirements...'
 pip install --no-deps --require-hashes --requirement requirements.txt
 echo