Merge pull request #8 from timkpaine/dependabot/github_actions/actions/setup-python-3

Bump actions/setup-python from 2 to 3

Author: timkpaine

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies