build(deps): 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/build-publish-docs.yaml

@@ -35,7 +35,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.11"
           # ref https://github.com/dask/dask-sphinx-theme/issues/68
@@ -62,7 +62,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.11"
           # ref https://github.com/dask/dask-sphinx-theme/issues/68

.github/workflows/build-publish-helm-chart.yaml

@@ -25,7 +25,7 @@ jobs:
           # chartpress requires git history to set chart version and image tags
           # correctly
           fetch-depth: 0
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.13"
 

.github/workflows/build-publish-python-packages.yaml

@@ -74,7 +74,7 @@ jobs:
         with:
           go-version: "1.23"
           cache-dependency-path: "**/*.sum"
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.13"
 

.github/workflows/test.yaml

@@ -68,7 +68,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "${{ matrix.python-version }}"
       - uses: actions/setup-go@v5
@@ -160,7 +160,7 @@ jobs:
           # chartpress requires git history to set chart version and image tags
           # correctly
           fetch-depth: 0
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.13"