Add voodoo sleep to test-release script

test-release

@@ -30,6 +30,11 @@ mkdir -p $sandbox
     # Create a temporary disposable virtualenv.
     $syspython -m venv --clear venv
 
+    # voodoo sleep. I saw the following install fail, due to expected version
+    # not being listed at test.pypi.org, but then a few seconds later, re-run
+    # manually. it worked fine.
+    sleep 5
+
     # Install the package we just uploaded.
     # (--extra-index-url for this project's requirements)
     venv/bin/python -m pip --quiet install --index-url https://test.pypi.org/simple --extra-index-url https://pypi.org/simple colorama==$version