Update pypa/gh-action-pypi-publish action to v1.8.1 (#128)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[pypa/gh-action-pypi-publish](https://togithub.com/pypa/gh-action-pypi-publish)
| action | minor | `v1.7.1` -> `v1.8.1` |

---

### Release Notes

<details>
<summary>pypa/gh-action-pypi-publish</summary>

###
[`v1.8.1`](https://togithub.com/pypa/gh-action-pypi-publish/releases/tag/v1.8.1)

[Compare
Source](https://togithub.com/pypa/gh-action-pypi-publish/compare/v1.8.0...v1.8.1)

#### 🐛 What's Fixed

💔 Unfortunately, a tiny mistake in v1.8.0 caused a far-reaching
regression for the most used code path.
❗ But don't worry, it's fixed now thanks to
[@&#8203;njzjz](https://togithub.com/njzjz) who promptly spotted it and
[@&#8203;zhongjiajie](https://togithub.com/zhongjiajie) who sent a
bugfix.

#### 🙌 New Contributors

- [@&#8203;zhongjiajie](https://togithub.com/zhongjiajie) made their
first contribution in
[https://github.com/pypa/gh-action-pypi-publish/pull/131](https://togithub.com/pypa/gh-action-pypi-publish/pull/131)

**Full Diff**:
pypa/gh-action-pypi-publish@v1.8.0...v1.8.1

###
[`v1.8.0`](https://togithub.com/pypa/gh-action-pypi-publish/releases/tag/v1.8.0)

[Compare
Source](https://togithub.com/pypa/gh-action-pypi-publish/compare/v1.7.1...v1.8.0)

#### The Coolest Release Ever!

In this release, [@&#8203;woodruffw](https://togithub.com/woodruffw)
implemented support for secretless OIDC-based publishing to PyPI-like
package indexes. The OIDC flow is activated when neither username nor
password action inputs are set.

The OIDC “token exchange”, is an authentication technique that PyPI (and
TestPyPI, and hopefully some future others) supports as an alternative
to long-lived username/password combinations or long-lived API tokens.

> **IMPORTANT:** The PyPI-side configuration is only available to
participants of the private beta test. Please, only try out the
zero-config mode if you are a beta test participant having followed the
PyPI configuration instructions.

Setup prerequisites:
https://github.com/marketplace/actions/pypi-publish#publishing-with-openid-connect
PyPI's documentation: https://pypi.org/help/#openid-connect
Beta test enrollment:
[https://github.com/pypi/warehouse/issues/12965](https://togithub.com/pypi/warehouse/issues/12965)

#### New Contributors

- [@&#8203;woodruffw](https://togithub.com/woodruffw) made their first
contribution in
[https://github.com/pypa/gh-action-pypi-publish/pull/123](https://togithub.com/pypa/gh-action-pypi-publish/pull/123)

**Full Diff**:
pypa/gh-action-pypi-publish@v1.7.1...v1.8.0

</details>

---

### Configuration

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♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

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---

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.github/workflows/python-pubsh.yaml

@@ -26,7 +26,7 @@ jobs:
     - name: Build package
       run: python -m build
     - name: Publish package
-      uses: pypa/gh-action-pypi-publish@v1.7.1
+      uses: pypa/gh-action-pypi-publish@v1.8.1
       with:
         user: __token__
         password: ${{ secrets.PYPI_API_TOKEN }}