chore(deps): bump actions/setup-python from 2.3.1 to 3 (aws-powertools#1048)

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

Author: dependabot[bot]

.github/workflows/publish.yml

@@ -49,7 +49,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Set up Python
-      uses: actions/setup-python@v2.3.1
+      uses: actions/setup-python@v3
       with:
         python-version: "3.8"
     - name: Set release notes tag

.github/workflows/python_build.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2.3.1
+        uses: actions/setup-python@v3
         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/setup-python@v2.3.1
+        uses: actions/setup-python@v3
         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/setup-python@v2.3.1
+      uses: actions/setup-python@v3
       with:
         python-version: "3.8"
     - name: Set release notes tag