Merge pull request #911 from rubocop/dependabot/github_actions/actions/setup-python-4

Bump actions/setup-python from 2 to 4

Author: koic

.github/workflows/spell_checking.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies