github-actions(deps): bump actions/setup-python from 2.3.0 to 2.3.1

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2.3.0 to 2.3.1.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v2.3.0...v2.3.1)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/pnl-ci-docs.yml

@@ -61,7 +61,7 @@ jobs:
         branch: master
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.3.0
+      uses: actions/setup-python@v2.3.1
       with:
         python-version: ${{ matrix.python-version }}
         architecture: ${{ matrix.python-architecture }}

.github/workflows/pnl-ci.yml

@@ -46,7 +46,7 @@ jobs:
         fetch-depth: 10
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.3.0
+      uses: actions/setup-python@v2.3.1
       with:
         python-version: ${{ matrix.python-version }}
         architecture: ${{ matrix.python-architecture }}

.github/workflows/test-release.yml

@@ -21,7 +21,7 @@ jobs:
       uses: actions/checkout@v2.4.0
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.3.0
+      uses: actions/setup-python@v2.3.1
       with:
         python-version: ${{ matrix.python-version }}
 
@@ -84,7 +84,7 @@ jobs:
         path: dist/
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2.3.0
+      uses: actions/setup-python@v2.3.1
       with:
         python-version: ${{ matrix.python-version }}