Bump actions/setup-python from 5 to 6 (#1673)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/clean-pr-checks.yml

@@ -57,7 +57,7 @@ jobs:
 
     steps:
       - name: Set up Python 3
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.x
 

.github/workflows/pr-security-approval.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Set up Python 3
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.x
 

.github/workflows/smoke-test.yml

@@ -20,7 +20,7 @@ jobs:
         fetch-depth: 0
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         cache: 'pip'