Update setuptools in CI to fix dependency installation

Author: bridadan

.circleci/config.yml

@@ -9,7 +9,7 @@ jobs:
 
       - run: python --version
       - run: pip --version
-      - run: pip install pytest
+      - run: pip install -U pytest setuptools
       - run: git config --global user.email "[email protected]"
       - run: git config --global user.name "mbed Test"
       - run: echo -e "[ui]\nusername = mbed Test <[email protected]>\n" > ~/.hgrc
@@ -129,7 +129,7 @@ jobs:
 
       - run: python --version
       - run: pip --version
-      - run: pip install pytest
+      - run: pip install -U pytest setuptools
       - run: git config --global user.email "[email protected]"
       - run: git config --global user.name "mbed Test"
       - run: echo -e "[ui]\nusername = mbed Test <[email protected]>\n" > ~/.hgrc