chore(deps): bump actions/setup-python from 2.3.0 to 2.3.1 (aws-powertools#852)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2.3.0 to 2.3.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/setup-python/releases">actions/setup-python's releases</a>.</em></p>
<blockquote>
<h2>Update actions/cache version to 1.0.8</h2>
<p>We have updated <a href="https://github.com/actions/toolkit/blob/main/packages/cache/RELEASES.md#108">actions/cache</a> dependency version to 1.0.8 to support 10GB cache upload</p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/setup-python/commit/f38219332975fe8f9c04cca981d674bf22aea1d3"><code>f382193</code></a> Update <code>@​actions/cache</code> version to 1.0.8 (<a href="https://github-redirect.dependabot.com/actions/setup-python/issues/283">#283</a>)</li>
<li><a href="https://github.com/actions/setup-python/commit/3ef38b826b0d09ce746cd326f8cdfa37933f0d6d"><code>3ef38b8</code></a> Create ADR for integrating cache functionality to setup-python action (<a href="https://github-redirect.dependabot.com/actions/setup-python/issues/247">#247</a>)</li>
<li>See full diff in <a href="https://github.com/actions/setup-python/compare/v2.3.0...v2.3.1">compare view</a></li>
</ul>
</details>
<br />


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Author: dependabot[bot]

.github/workflows/publish.yml

@@ -48,7 +48,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Set up Python
-      uses: actions/[email protected].0
+      uses: actions/[email protected].1
       with:
         python-version: "3.8"
     - name: Set release notes tag

.github/workflows/python_build.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@v1
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies

.github/workflows/python_docs.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Set up Python
-        uses: actions/[email protected].0
+        uses: actions/[email protected].1
         with:
           python-version: "3.8"
       - name: Install dependencies

.github/workflows/rebuild_latest_docs.yml

@@ -25,7 +25,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Set up Python
-      uses: actions/[email protected].0
+      uses: actions/[email protected].1
       with:
         python-version: "3.8"
     - name: Set release notes tag