⬆️ Bump actions/setup-python from 5 to 6

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5 to 6.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v5...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] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci-macos.yml

@@ -43,7 +43,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.13"
 

.github/workflows/dist.yml

@@ -211,7 +211,7 @@ jobs:
           name: dist
           path: dist
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         # As of 2024-02-03, the macOS M1 runners do not have preinstalled python or pipx.
         # Installing pipx follows the approach of https://github.com/pypa/cibuildwheel/pull/1743
         id: python