chore(deps): update actions/setup-python action to v6

Author: renovate[bot]

.github/workflows/migrations-check-mysql8.yml

@@ -21,7 +21,7 @@ jobs:
       uses: actions/checkout@v3
 
     - name: Setup Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
 

.github/workflows/requirements-upgrade.yml

@@ -28,7 +28,7 @@ jobs:
         ref: ${{ env.target_branch }}
 
     - name: setup python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}