Update actions/setup-python action to v4.6.1

Author: renovate[bot]

.github/workflows/gh-page.yml

@@ -18,7 +18,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python 3.6
-        uses: actions/setup-python@v4.0.0
+        uses: actions/setup-python@v4.6.1
         with:
           python-version: 3.6
 

.github/workflows/lint.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3.5.3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4.0.0
+        uses: actions/setup-python@v4.6.1
         with:
           python-version: ${{ matrix.python-version }}
       - uses: actions/cache@v3.3.1