message: Add CI step to upgrade pip
diff: @@ -35,6 +35,10 @@ jobs:
  key: osx-${{ runner.os }}-${{ steps.get-date.outputs.date }}
  restore-keys: |
  osx-${{ runner.os }}-
  + - name: Upgrade pip
  + shell: bash
  + run: |
  + python -m pip install --upgrade pip
  - name: Build Python ${{ matrix.python-version }} wheel and Test
  shell: bash
  if: matrix.python-version == '3.6'
  