Update actions/setup-python requirement to v2.1.4

Updates the requirements on [actions/setup-python](https://github.com/actions/setup-python) to permit the latest version.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/commits/41b7212b1668f5de9d65e9c82aa777e6bbedb3a8)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/deploy_master_to_github_pages.yml

@@ -22,7 +22,7 @@ jobs:
         fetch-depth: 0
 
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2.1.4
       with:
         python-version: 3.8
 

.github/workflows/pr_to_master.yml

@@ -20,7 +20,7 @@ jobs:
       uses: actions/checkout@v2
 
     - name: Set up Python 3.8
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2.1.4
       with:
         python-version: 3.8
 

.github/workflows/pre-commit.yml

@@ -20,7 +20,7 @@ jobs:
       uses: actions/checkout@v2
 
     - name: Set up Python 3.7
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2.1.4
       with:
         python-version: 3.7
 

.github/workflows/pre-commit_autoupdate.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v2.1.4
       with:
         python-version: ${{ env.PYTHON_VERSION }}