Bump actions/setup-python from 5 to 6 in /.github/actions/setup-deploy (#6846)

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

Author: dependabot[bot]

.github/actions/setup-deploy/action.yaml

@@ -46,7 +46,7 @@ inputs:
 runs:
   using: composite
   steps:
-  - uses: actions/setup-python@v5
+  - uses: actions/setup-python@v6
     with:
       python-version: '3.13'
   - uses: actions/setup-go@v5