build(deps): bump actions/setup-python from 5.5.0 to 5.6.0 (#661)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 5.5.0 to 5.6.0.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@8d9ed9a...a26af69)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-version: 5.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/aiohttp.yml

@@ -41,7 +41,7 @@ jobs:
       run: make
       working-directory: vendor/llhttp
     - name: Setup Python
-      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
       with:
         python-version: 3.x
         cache: 'pip'