Upgrade pip and setuptools in workflow

Python 3.5 on GitHub Action ran into some certificate issue that newer version of pip doesn't have, so upgrading to the latest by default.

Author: fantix

.github/workflows/tests.yml

@@ -62,6 +62,7 @@ jobs:
  - name: Install Python Deps
  if: steps.release.outputs.version == 0
  run: |
+ pip install -U pip setuptools
  pip install -e .[test]
 
  - name: Test
@@ -117,6 +118,7 @@ jobs:
  - name: Install Python Deps
  if: steps.release.outputs.version == 0
  run: |
+ pip install -U pip setuptools
  pip install -e .[test]
 
  - name: Test