Bump actions/setup-python from 2 to 6

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v2...v6)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/bot.yaml

@@ -12,7 +12,7 @@ jobs:
         fetch-depth: 0
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v6
       with:
         python-version: '3.x'
 

.github/workflows/pypi-publish.yaml

@@ -11,7 +11,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up Python 3.9
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v6
         with:
           python-version: 3.9
       - name: Install dependencies