chore(deps): update actions/setup-python action to v6 (#1315)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[actions/setup-python](https://redirect.github.com/actions/setup-python)
| action | major | `v5.6.0` -> `v6.0.0` |

---

### Release Notes

<details>
<summary>actions/setup-python (actions/setup-python)</summary>

###
[`v6.0.0`](https://redirect.github.com/actions/setup-python/releases/tag/v6.0.0)

[Compare
Source](https://redirect.github.com/actions/setup-python/compare/v5.6.0...v6.0.0)

#### What's Changed

##### Breaking Changes

- Upgrade to node 24 by
[@&#8203;salmanmkc](https://redirect.github.com/salmanmkc) in
[#&#8203;1164](https://redirect.github.com/actions/setup-python/pull/1164)

Make sure your runner is updated to this version or newer to use this
release. v2.327.1 [Release
Notes](https://redirect.github.com/actions/runner/releases/tag/v2.327.1)

##### Enhancements:

- Add support for `pip-version` by
[@&#8203;priyagupta108](https://redirect.github.com/priyagupta108) in
[#&#8203;1129](https://redirect.github.com/actions/setup-python/pull/1129)
- Enhance reading from .python-version by
[@&#8203;krystof-k](https://redirect.github.com/krystof-k) in
[#&#8203;787](https://redirect.github.com/actions/setup-python/pull/787)
- Add version parsing from Pipfile by
[@&#8203;aradkdj](https://redirect.github.com/aradkdj) in
[#&#8203;1067](https://redirect.github.com/actions/setup-python/pull/1067)

##### Bug fixes:

- Clarify pythonLocation behaviour for PyPy and GraalPy in environment
variables by
[@&#8203;aparnajyothi-y](https://redirect.github.com/aparnajyothi-y) in
[#&#8203;1183](https://redirect.github.com/actions/setup-python/pull/1183)
- Change missing cache directory error to warning by
[@&#8203;aparnajyothi-y](https://redirect.github.com/aparnajyothi-y) in
[#&#8203;1182](https://redirect.github.com/actions/setup-python/pull/1182)
- Add Architecture-Specific PATH Management for Python with --user Flag
on Windows by
[@&#8203;aparnajyothi-y](https://redirect.github.com/aparnajyothi-y) in
[#&#8203;1122](https://redirect.github.com/actions/setup-python/pull/1122)
- Include python version in PyPy python-version output by
[@&#8203;cdce8p](https://redirect.github.com/cdce8p) in
[#&#8203;1110](https://redirect.github.com/actions/setup-python/pull/1110)
- Update docs: clarification on pip authentication with setup-python by
[@&#8203;priya-kinthali](https://redirect.github.com/priya-kinthali) in
[#&#8203;1156](https://redirect.github.com/actions/setup-python/pull/1156)

##### Dependency updates:

- Upgrade idna from 2.9 to 3.7 in /**tests**/data by
[@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot] in
[#&#8203;843](https://redirect.github.com/actions/setup-python/pull/843)
- Upgrade form-data to fix critical vulnerabilities
[#&#8203;182](https://redirect.github.com/actions/setup-python/issues/182)
&
[#&#8203;183](https://redirect.github.com/actions/setup-python/issues/183)
by [@&#8203;aparnajyothi-y](https://redirect.github.com/aparnajyothi-y)
in
[#&#8203;1163](https://redirect.github.com/actions/setup-python/pull/1163)
- Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIndex.download by
[@&#8203;aparnajyothi-y](https://redirect.github.com/aparnajyothi-y) in
[#&#8203;1165](https://redirect.github.com/actions/setup-python/pull/1165)
- Upgrade actions/checkout from 4 to 5 by
[@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot] in
[#&#8203;1181](https://redirect.github.com/actions/setup-python/pull/1181)
- Upgrade
[@&#8203;actions/tool-cache](https://redirect.github.com/actions/tool-cache)
from 2.0.1 to 2.0.2 by
[@&#8203;dependabot](https://redirect.github.com/dependabot)\[bot] in
[#&#8203;1095](https://redirect.github.com/actions/setup-python/pull/1095)

#### New Contributors

- [@&#8203;krystof-k](https://redirect.github.com/krystof-k) made their
first contribution in
[#&#8203;787](https://redirect.github.com/actions/setup-python/pull/787)
- [@&#8203;cdce8p](https://redirect.github.com/cdce8p) made their first
contribution in
[#&#8203;1110](https://redirect.github.com/actions/setup-python/pull/1110)
- [@&#8203;aradkdj](https://redirect.github.com/aradkdj) made their
first contribution in
[#&#8203;1067](https://redirect.github.com/actions/setup-python/pull/1067)

**Full Changelog**:
<actions/setup-python@v5...v6.0.0>

</details>

---

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---

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.github/workflows/checks.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: ${{ matrix.python }}
 
@@ -76,7 +76,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.9"
 
@@ -161,7 +161,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.9"
       - name: Get Python Version