Bump actions/setup-python from 2.3.2 to 3 (#1552)

Author: dependabot[bot]

.github/workflows/documentation.yml

@@ -67,7 +67,7 @@ jobs:
       uses: actions/checkout@v2
 
     - name: Setup Python
-      uses: actions/setup-python@v2.3.2
+      uses: actions/setup-python@v3
       with:
         python-version: 3.7
         architecture: 'x64'

.github/workflows/python.yml

@@ -89,7 +89,7 @@ jobs:
       run: mvn -ntp clean package -P distribution
 
     - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.3.2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python-version }}
         architecture: 'x64'