Update buildspec_unit.yaml

Author: shivlaks

buildspec_unit.yaml

@@ -3,10 +3,12 @@ version: 0.2
 phases:
   pre_build:
     commands:
+      - pip install --upgrade pip
       - pip install setuptools wheel twine
       - python setup.py sdist
       - pip install tox
   build:
     commands:
       - twine check dist/*
       - tox tests/unit/
+      - tox tests/integ/